Colors Encyclopedia

Named color

Dark Olive Green

Dark Olive Green color #556B2F: RGB 85, 107, 47 and HSL 82°, 39%, 30%. Explore its cool green profile, contrast, CSS, palettes and harmonies.

#556B2F green cool earth-tone
HEX #556B2F
RGB rgb(85, 107, 47)
HSL hsl(82 39% 30%)
CMYK cmyk(21, 0, 56, 58)
Luminance 0.1265
Contrast Black 3.53:1White 5.95:1

Use this color

Create with Dark Olive Green

Open a professional color tool with #556B2F already applied. Each configuration stays canonical to the tool and can be adjusted or shared.

All color tools
Generate palette & CSS variablesCreate 50–950 tokens and export CSS, SCSS, JSON, or Tailwind.Open configured tool →Open in Gradient StudioStart with Dark Olive Green and its complementary color.Open configured tool →Mix this colorBlend it with a complementary color and copy color-mix() CSS.Open configured tool →Check contrastOpen the strongest black or white background pairing.Open configured tool →Accessible combinationsReview AA and AAA text options, alternatives, warnings, and UI guidance.Open configured tool →Create glass surfaceUse this color as the tint for a translucent UI panel.Open configured tool →

CSS Utilities

--color-dark-olive-green: #556B2F;
.bg-dark-olive-green { background-color: #556B2F; }
.text-dark-olive-green { color: #556B2F; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color meaning and use

About Dark Olive Green Color

Dark Olive Green uses HEX #556B2F, RGB 85, 107, 47, and HSL 82°, 39%, 30%. The dataset classifies it in the green family with cool temperature and earth tone visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.1265; black contrast is 3.53:1 and white contrast is 5.95:1, making white the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Dark Olive Green against black and white text.

Black text3.53:1AA Fail
White text5.95:1AA Pass
AA text options#FFFFFF, #F5F5F5
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Dark Olive Green Color Reference Infographic

Save a high-resolution infographic of Dark Olive Green, including its color values, coordinated palette, and black and white text contrast.

1200 × 800
Dark Olive Green color reference infographic showing #556B2F, RGB and HSL values, a coordinated palette, and black and white text contrast.
Dark Olive Green color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#452F6A#452F6A#6A622F#6A622F#376A2F#376A2F#2F546A#2F546A#6A2F54#6A2F54
Open full Dark Olive Green harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#87AA4B#87AA4B#222B13#222B13#597B1E#597B1E#505A3F#505A3F#94A871#94A871#7BC200#7BC200

Pairings

White#FFFFFF#452F6A#452F6A#6A622F#6A622F#376A2F#376A2FMatte Black#1A1A1AWhite Smoke#F5F5F5

Machine-readable data

Machine-Readable Color Data (JSON)

Perfect for CSS, design systems, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.1265
Black text3.53:1AA Fail
White text5.95:1AA Pass
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Color systems
{
  "hex": "#556B2F",
  "rgb": [
    85,
    107,
    47
  ],
  "hsl": [
    82,
    39,
    30
  ],
  "cmyk": [
    21,
    0,
    56,
    58
  ],
  "luminance": 0.1265,
  "contrast": {
    "black": 3.53,
    "white": 5.95
  }
}
WCAG
{
  "AA": [
    "#FFFFFF",
    "#F5F5F5"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#452F6A",
  "analogous": [
    "#6A622F",
    "#376A2F"
  ],
  "triadic": [
    "#2F546A",
    "#6A2F54"
  ],
  "tetradic": [
    "#2F6A62",
    "#452F6A",
    "#6A2F37"
  ],
  "splitComplementary": [
    "#2F376A",
    "#622F6A"
  ],
  "monochromatic": [
    "#87AA4B",
    "#556B2F",
    "#222B13"
  ]
}
Variants
{
  "light": "#87AA4B",
  "dark": "#222B13",
  "saturated": "#597B1E",
  "desaturated": "#505A3F",
  "pastel": "#94A871",
  "neon": "#7BC200"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#452F6A",
    "#6A622F",
    "#376A2F"
  ],
  "avoid": [
    "#505A3F",
    "#87AA4B"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#87AA4B",
    "#505A3F"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "moss-deep",
    "fern-frond",
    "fern-green",
    "hunter-green",
    "olive-green"
  ],
  "generatedPalettes": [
    "dark-olive-green"
  ],
  "generatedComparisons": [
    "dark-olive-green-vs-fern-frond",
    "dark-olive-green-vs-moss-deep",
    "fern-green-vs-dark-olive-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/green",
    "/colors/by-temperature/cool",
    "/colors/by-tone/earth-tone"
  ],
  "relatedTools": [
    "/harmonies/dark-olive-green",
    "/wcag/dark-olive-green",
    "/css/colors/dark-olive-green",
    "/hex/556b2f",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/green",
      "/colors/by-temperature/cool",
      "/colors/by-tone/earth-tone"
    ],
    "narrower": [
      "/palettes/dark-olive-green"
    ],
    "related": [
      "/colors/moss-deep",
      "/colors/fern-frond",
      "/colors/fern-green",
      "/colors/hunter-green",
      "/colors/olive-green",
      "/compare/dark-olive-green-vs-fern-frond",
      "/compare/dark-olive-green-vs-moss-deep",
      "/compare/fern-green-vs-dark-olive-green",
      "/harmonies/dark-olive-green",
      "/wcag/dark-olive-green",
      "/css/colors/dark-olive-green",
      "/hex/556b2f",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "dark-olive-green",
  "name": "Dark Olive Green",
  "cssName": "darkolivegreen",
  "hex": "#556B2F",
  "family": "green",
  "temperature": "cool",
  "tone": [
    "earth-tone"
  ],
  "uses": [
    "web design",
    "CSS color systems",
    "UI prototyping"
  ],
  "psychology": {
    "associations": [
      "context dependent"
    ],
    "contexts": [
      "web interfaces",
      "design systems",
      "technical color references"
    ],
    "avoidIn": [
      "claims that require brand or cultural specificity"
    ]
  },
  "aliases": [
    "darkolivegreen"
  ],
  "sourceType": "standard",
  "confidence": "high",
  "sourceUrl": "https://www.w3.org/TR/css-color-4/#named-colors",
  "origin": {
    "type": "css",
    "notes": "Standard CSS named color."
  },
  "reviewStatus": "auto",
  "editorialNotes": "Generated from CSS named color data and computed color-system properties.",
  "tags": [
    "green",
    "cool",
    "earth-tone",
    "web-design",
    "css-color-systems",
    "ui-prototyping",
    "context-dependent"
  ],
  "popularity": 67,
  "rgb": [
    85,
    107,
    47
  ],
  "hsl": [
    82,
    39,
    30
  ],
  "cmyk": [
    21,
    0,
    56,
    58
  ],
  "luminance": 0.1265,
  "contrast": {
    "black": 3.53,
    "white": 5.95
  },
  "harmonies": {
    "complementary": "#452F6A",
    "analogous": [
      "#6A622F",
      "#376A2F"
    ],
    "triadic": [
      "#2F546A",
      "#6A2F54"
    ],
    "tetradic": [
      "#2F6A62",
      "#452F6A",
      "#6A2F37"
    ],
    "splitComplementary": [
      "#2F376A",
      "#622F6A"
    ],
    "monochromatic": [
      "#87AA4B",
      "#556B2F",
      "#222B13"
    ]
  },
  "variants": {
    "light": "#87AA4B",
    "dark": "#222B13",
    "saturated": "#597B1E",
    "desaturated": "#505A3F",
    "pastel": "#94A871",
    "neon": "#7BC200"
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-dark-olive-green: #556B2F;",
    "utility": ".bg-dark-olive-green { background-color: #556B2F; }",
    "textUtility": ".text-dark-olive-green { color: #556B2F; }"
  },
  "nearestColors": [
    "moss-deep",
    "fern-frond",
    "fern-green",
    "hunter-green",
    "olive-green"
  ],
  "generatedPalettes": [
    "dark-olive-green"
  ],
  "generatedComparisons": [
    "dark-olive-green-vs-fern-frond",
    "dark-olive-green-vs-moss-deep",
    "fern-green-vs-dark-olive-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/green",
    "/colors/by-temperature/cool",
    "/colors/by-tone/earth-tone"
  ],
  "relatedTools": [
    "/harmonies/dark-olive-green",
    "/wcag/dark-olive-green",
    "/css/colors/dark-olive-green",
    "/hex/556b2f",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/green",
      "/colors/by-temperature/cool",
      "/colors/by-tone/earth-tone"
    ],
    "narrower": [
      "/palettes/dark-olive-green"
    ],
    "related": [
      "/colors/moss-deep",
      "/colors/fern-frond",
      "/colors/fern-green",
      "/colors/hunter-green",
      "/colors/olive-green",
      "/compare/dark-olive-green-vs-fern-frond",
      "/compare/dark-olive-green-vs-moss-deep",
      "/compare/fern-green-vs-dark-olive-green",
      "/harmonies/dark-olive-green",
      "/wcag/dark-olive-green",
      "/css/colors/dark-olive-green",
      "/hex/556b2f",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#452F6A",
      "#6A622F",
      "#376A2F"
    ],
    "avoid": [
      "#505A3F",
      "#87AA4B"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#87AA4B",
      "#505A3F"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Moss Deep#4A5D23
Fern Frond#657220
Fern Green#4F7942
Hunter Green#355E3B
Olive Green#708238

Related Color Guides

Green color familyBrowse named green colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Earth Tone colorsFind colors with earth tone visual character.Dark Olive Green accessibilityCheck contrast and WCAG text options for #556B2F.Dark Olive Green CSS utilitiesUse Dark Olive Green in CSS variables and utility classes.#556B2F HEX atlasOpen the permanent HEX atlas record for conversions and variants.Dark Olive Green paletteOpen the generated palette based on Dark Olive Green.Dark Olive Green harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.