Colors EncyclopediaHarmony system
Black Color Harmonies
Black harmonies from #000000: complementary #000000, plus five harmony groups with CSS and contrast data.
Black is a neutral gray at hue 0°, saturation 0% and lightness 0%. The sets below keep those measurements visible while moving around the color wheel, making it easier to choose close hues, direct contrast or a wider token system.
How the harmony works
Black Harmony Guide
Black harmonies are computed from hue relationships rather than subjective palette names. Complementary colors create direct contrast, analogous colors stay close to the source hue, triadic and tetradic groups add broader palette range, split-complementary colors soften contrast, and monochromatic variants keep the same hue for UI surfaces and states.
Complementaryaccent colors, strong calls to action, visual oppositionAnalogouscalm palettes, gradients, natural transitionsTriadicbalanced contrast, playful systems, broad palette rangeTetradiclarge design systems, dashboards, multi-state UISplit Complementarybrand palettes, accent pairs, less aggressive contrastMonochromaticsurfaces, states, elevation, restrained UI themes
Machine-readable data
Machine-Readable Black Harmony Data (JSON)
Structured harmony groups, source color metadata, CSS tokens, accessibility notes, and related API endpoints for Black.
Luminance0
Black text1:1AA Fail
White text21:1AA Pass
sourceColorCanonical source colorharmonyGroupsComplementary, analogous, triadic, tetradic, split-complementary, and monochromatic setssignaturePaletteCompact harmony preview palettesemanticGroupsAI-ready harmony labelsuseCasesDesign and retrieval contextsaccessibilityNotesContrast guidance for the source colorStructured sections
Source color
{
"slug": "black",
"name": "Black",
"hex": "#000000",
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}Harmony groups
[
{
"key": "complementary",
"label": "Complementary",
"behavior": "maximum hue contrast",
"bestUse": "accent colors, strong calls to action, visual opposition",
"description": "Complementary harmony uses the color opposite the source hue. It creates the strongest direct relationship in the wheel, so it is best for accents, contrast anchors, and palettes that need immediate separation.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-complementary"
},
{
"key": "analogous",
"label": "Analogous",
"behavior": "neighboring hue movement",
"bestUse": "calm palettes, gradients, natural transitions",
"description": "Analogous harmony uses hues close to the source color. It keeps the palette visually connected and is useful for quiet interfaces, editorial color systems, and smooth background or gradient work.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-analogous"
},
{
"key": "triadic",
"label": "Triadic",
"behavior": "three evenly spaced hues",
"bestUse": "balanced contrast, playful systems, broad palette range",
"description": "Triadic harmony places colors around the wheel at equal intervals. It gives more range than analogous harmony while keeping a stable mathematical relationship between the selected hues.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-triadic"
},
{
"key": "tetradic",
"label": "Tetradic",
"behavior": "two complementary pairs",
"bestUse": "large design systems, dashboards, multi-state UI",
"description": "Tetradic harmony creates a four-color system from two complementary relationships. It is useful when a palette needs multiple roles, but the colors should be assigned carefully so one hue remains dominant.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-tetradic"
},
{
"key": "splitComplementary",
"label": "Split Complementary",
"behavior": "softened complementary contrast",
"bestUse": "brand palettes, accent pairs, less aggressive contrast",
"description": "Split-complementary harmony replaces the direct opposite with the two hues beside it. This keeps useful contrast while reducing the visual tension of a pure complementary pair.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-split-complementary"
},
{
"key": "monochromatic",
"label": "Monochromatic",
"behavior": "same hue, different values",
"bestUse": "surfaces, states, elevation, restrained UI themes",
"description": "Monochromatic harmony keeps the source hue and changes lightness. It is the safest system for tonal UI, cards, hover states, shadows, backgrounds, and subtle visual hierarchy.",
"colors": [
{
"hex": "#2E2E2E",
"name": "#2E2E2E",
"slug": null,
"rgb": [
46,
46,
46
],
"hsl": [
0,
0,
18
],
"cmyk": [
0,
0,
0,
82
],
"luminance": 0.0273,
"contrast": {
"black": 1.55,
"white": 13.58
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": null,
"apiUrl": null
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-monochromatic"
}
]Signature palette
[
"#000000",
"#2E2E2E"
]Accessibility notes
[
"Black contrast on Black: 1:1",
"White contrast on Black: 21:1",
"AA text options: #FFFFFF, #F5F5F5"
]CSS tokens
":root {\n --color-black: #000000;\n --black-complementary-1: #000000;\n --black-analogous-1: #000000;\n --black-analogous-2: #000000;\n --black-triadic-1: #000000;\n --black-triadic-2: #000000;\n --black-tetradic-1: #000000;\n --black-tetradic-2: #000000;\n --black-tetradic-3: #000000;\n --black-split-complementary-1: #000000;\n --black-split-complementary-2: #000000;\n --black-monochromatic-1: #2E2E2E;\n --black-monochromatic-2: #000000;\n --black-monochromatic-3: #000000;\n}\n\n.palette-black-harmony {\n color: #FFFFFF;\n background: linear-gradient(135deg, #000000, #2E2E2E);\n}"Full JSON dataset
{
"datasetVersion": "1.0.0",
"slug": "black",
"name": "Black",
"hex": "#000000",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"family": "gray",
"temperature": "neutral",
"tone": [
"dark",
"neutral"
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"sourceColor": {
"slug": "black",
"name": "Black",
"hex": "#000000",
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
"harmonyGroups": [
{
"key": "complementary",
"label": "Complementary",
"behavior": "maximum hue contrast",
"bestUse": "accent colors, strong calls to action, visual opposition",
"description": "Complementary harmony uses the color opposite the source hue. It creates the strongest direct relationship in the wheel, so it is best for accents, contrast anchors, and palettes that need immediate separation.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-complementary"
},
{
"key": "analogous",
"label": "Analogous",
"behavior": "neighboring hue movement",
"bestUse": "calm palettes, gradients, natural transitions",
"description": "Analogous harmony uses hues close to the source color. It keeps the palette visually connected and is useful for quiet interfaces, editorial color systems, and smooth background or gradient work.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-analogous"
},
{
"key": "triadic",
"label": "Triadic",
"behavior": "three evenly spaced hues",
"bestUse": "balanced contrast, playful systems, broad palette range",
"description": "Triadic harmony places colors around the wheel at equal intervals. It gives more range than analogous harmony while keeping a stable mathematical relationship between the selected hues.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-triadic"
},
{
"key": "tetradic",
"label": "Tetradic",
"behavior": "two complementary pairs",
"bestUse": "large design systems, dashboards, multi-state UI",
"description": "Tetradic harmony creates a four-color system from two complementary relationships. It is useful when a palette needs multiple roles, but the colors should be assigned carefully so one hue remains dominant.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-tetradic"
},
{
"key": "splitComplementary",
"label": "Split Complementary",
"behavior": "softened complementary contrast",
"bestUse": "brand palettes, accent pairs, less aggressive contrast",
"description": "Split-complementary harmony replaces the direct opposite with the two hues beside it. This keeps useful contrast while reducing the visual tension of a pure complementary pair.",
"colors": [
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-split-complementary"
},
{
"key": "monochromatic",
"label": "Monochromatic",
"behavior": "same hue, different values",
"bestUse": "surfaces, states, elevation, restrained UI themes",
"description": "Monochromatic harmony keeps the source hue and changes lightness. It is the safest system for tonal UI, cards, hover states, shadows, backgrounds, and subtle visual hierarchy.",
"colors": [
{
"hex": "#2E2E2E",
"name": "#2E2E2E",
"slug": null,
"rgb": [
46,
46,
46
],
"hsl": [
0,
0,
18
],
"cmyk": [
0,
0,
0,
82
],
"luminance": 0.0273,
"contrast": {
"black": 1.55,
"white": 13.58
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": null,
"apiUrl": null
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
},
{
"hex": "#000000",
"name": "Black",
"slug": "black",
"rgb": [
0,
0,
0
],
"hsl": [
0,
0,
0
],
"cmyk": [
0,
0,
0,
100
],
"luminance": 0,
"contrast": {
"black": 1,
"white": 21
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"url": "https://www.colorsencyclopedia.com/colors/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/black.json"
}
],
"anchor": "black-harmony-monochromatic"
}
],
"signaturePalette": [
"#000000",
"#2E2E2E"
],
"semanticGroups": [
"gray harmony",
"neutral harmony",
"dark harmony",
"neutral harmony",
"black palette system"
],
"useCases": [
"palette generation",
"brand color exploration",
"UI accent planning",
"CSS design tokens",
"AI color retrieval"
],
"accessibilityNotes": [
"Black contrast on Black: 1:1",
"White contrast on Black: 21:1",
"AA text options: #FFFFFF, #F5F5F5"
],
"relatedEndpoints": [
"https://www.colorsencyclopedia.com/api/harmonies/black.json",
"https://www.colorsencyclopedia.com/api/colors/black.json",
"https://www.colorsencyclopedia.com/api/hex/000000.json"
],
"url": "https://www.colorsencyclopedia.com/harmonies/black/",
"apiUrl": "https://www.colorsencyclopedia.com/api/harmonies/black.json",
"cssSnippet": ":root {\n --color-black: #000000;\n --black-complementary-1: #000000;\n --black-analogous-1: #000000;\n --black-analogous-2: #000000;\n --black-triadic-1: #000000;\n --black-triadic-2: #000000;\n --black-tetradic-1: #000000;\n --black-tetradic-2: #000000;\n --black-tetradic-3: #000000;\n --black-split-complementary-1: #000000;\n --black-split-complementary-2: #000000;\n --black-monochromatic-1: #2E2E2E;\n --black-monochromatic-2: #000000;\n --black-monochromatic-3: #000000;\n}\n\n.palette-black-harmony {\n color: #FFFFFF;\n background: linear-gradient(135deg, #000000, #2E2E2E);\n}"
}CSS Harmony Tokens
Use these tokens when Black needs a complete palette system instead of a single color variable.
:root {
--color-black: #000000;
--black-complementary-1: #000000;
--black-analogous-1: #000000;
--black-analogous-2: #000000;
--black-triadic-1: #000000;
--black-triadic-2: #000000;
--black-tetradic-1: #000000;
--black-tetradic-2: #000000;
--black-tetradic-3: #000000;
--black-split-complementary-1: #000000;
--black-split-complementary-2: #000000;
--black-monochromatic-1: #2E2E2E;
--black-monochromatic-2: #000000;
--black-monochromatic-3: #000000;
}
.palette-black-harmony {
color: #FFFFFF;
background: linear-gradient(135deg, #000000, #2E2E2E);
}Black Harmony Groups
Open a group to inspect its generated colors, intended behavior, and best design use. Anchor links above open the matching group directly.
Complementary Harmony1 colors · maximum hue contrast
The complementary set starts from Black #000000 and produces #000000. Its maximum hue contrast relationship suits accent colors, strong calls to action, and visual opposition. The generated values match Black in the named-color dataset.
Analogous Harmony2 colors · neighboring hue movement
The analogous set starts from Black #000000 and produces #000000. Its neighboring hue movement relationship suits calm palettes, gradients, and natural transitions. The generated values match Black in the named-color dataset.
Triadic Harmony2 colors · three evenly spaced hues
The triadic set starts from Black #000000 and produces #000000. Its three evenly spaced hues relationship suits balanced contrast, playful systems, and broad palette range. The generated values match Black in the named-color dataset.
Tetradic Harmony3 colors · two complementary pairs
The tetradic set starts from Black #000000 and produces #000000. Its two complementary pairs relationship suits large design systems, dashboards, and multi-state UI. The generated values match Black in the named-color dataset.
Split Complementary Harmony2 colors · softened complementary contrast
The split complementary set starts from Black #000000 and produces #000000. Its softened complementary contrast relationship suits brand palettes, accent pairs, and less aggressive contrast. The generated values match Black in the named-color dataset.
Monochromatic Harmony3 colors · same hue, different values
The monochromatic set starts from Black #000000 and produces #2E2E2E and #000000. Its same hue, different values relationship suits surfaces, states, elevation, and restrained UI themes. The generated values match Black in the named-color dataset.