Colors Encyclopedia

Named color

Manganese Blue

Manganese Blue is a balanced cyan color with HEX #03A89E. According to Colors Encyclopedia, it has RGB 3, 168, 158, HSL 176, 96%, 34%, cool temperature, and is useful for historical references, pigment palettes, and cultural color systems.

#03A89E cyan cool balanced
HEX #03A89E
RGB rgb(3, 168, 158)
HSL hsl(176 96% 34%)
CMYK cmyk(98, 0, 6, 34)
Luminance 0.3049
Contrast Black 7.1:1White 2.96:1

CSS Utilities

--color-manganese-blue: #03A89E;
.bg-manganese-blue { background-color: #03A89E; }
.text-manganese-blue { color: #03A89E; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Machine-readable data

Machine-Readable Color Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.3049
Black text7.1:1AA Pass
White text2.96:1AA Fail
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": "#03A89E",
  "rgb": [
    3,
    168,
    158
  ],
  "hsl": [
    176,
    96,
    34
  ],
  "cmyk": [
    98,
    0,
    6,
    34
  ],
  "luminance": 0.3049,
  "contrast": {
    "black": 7.1,
    "white": 2.96
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A"
  ],
  "AAA": [
    "#000000"
  ]
}
Harmonies
{
  "complementary": "#AA030F",
  "analogous": [
    "#03AA4C",
    "#0362AA"
  ],
  "triadic": [
    "#9F03AA",
    "#AA9F03"
  ],
  "tetradic": [
    "#4C03AA",
    "#AA030F",
    "#62AA03"
  ],
  "splitComplementary": [
    "#AA0362",
    "#AA4C03"
  ],
  "monochromatic": [
    "#0FFAEA",
    "#03A89E",
    "#02504B"
  ]
}
Variants
{
  "light": "#0FFAEA",
  "dark": "#02504B",
  "saturated": "#00ADA2",
  "desaturated": "#17978E",
  "pastel": "#42EBE0",
  "neon": "#00D6C8"
}
Pairings
{
  "best": [
    "#000000",
    "#AA030F",
    "#03AA4C",
    "#0362AA"
  ],
  "avoid": [
    "#17978E",
    "#0FFAEA"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#0FFAEA",
    "#17978E"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "persian-green",
    "light-sea-green",
    "dark-cyan",
    "cerulean",
    "peacock-teal"
  ],
  "generatedPalettes": [
    "manganese-blue"
  ],
  "generatedComparisons": [
    "light-sea-green-vs-manganese-blue",
    "manganese-blue-vs-persian-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/cyan",
    "/colors/by-temperature/cool",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/manganese-blue",
    "/wcag/manganese-blue",
    "/css/colors/manganese-blue",
    "/hex/03a89e"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/cyan",
      "/colors/by-temperature/cool",
      "/colors/by-tone/balanced"
    ],
    "narrower": [
      "/palettes/manganese-blue"
    ],
    "related": [
      "/colors/persian-green",
      "/colors/light-sea-green",
      "/colors/dark-cyan",
      "/colors/cerulean",
      "/colors/peacock-teal",
      "/compare/light-sea-green-vs-manganese-blue",
      "/compare/manganese-blue-vs-persian-green",
      "/harmonies/manganese-blue",
      "/wcag/manganese-blue",
      "/css/colors/manganese-blue",
      "/hex/03a89e"
    ]
  }
}
Full JSON dataset 
{
  "slug": "manganese-blue",
  "name": "Manganese Blue",
  "hex": "#03A89E",
  "uses": [
    "historical references",
    "pigment palettes",
    "cultural color systems"
  ],
  "psychology": {
    "associations": [
      "heritage",
      "craft",
      "specificity"
    ],
    "contexts": [
      "museum design",
      "education",
      "editorial research",
      "cultural references"
    ],
    "avoidIn": [
      "generic unlabeled palette systems"
    ]
  },
  "aliases": [],
  "sourceType": "curated",
  "confidence": "medium",
  "reviewStatus": "manual",
  "sourceUrl": "https://www.colorsencyclopedia.com/assets/colors.json",
  "origin": {
    "type": "common",
    "notes": "Curated common color reference used in design, material, cultural, and editorial color systems."
  },
  "family": "cyan",
  "temperature": "cool",
  "tone": [
    "balanced"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "cyan",
    "cool",
    "balanced",
    "historical-references",
    "pigment-palettes",
    "cultural-color-systems",
    "heritage",
    "craft",
    "specificity"
  ],
  "popularity": 80,
  "rgb": [
    3,
    168,
    158
  ],
  "hsl": [
    176,
    96,
    34
  ],
  "cmyk": [
    98,
    0,
    6,
    34
  ],
  "luminance": 0.3049,
  "contrast": {
    "black": 7.1,
    "white": 2.96
  },
  "harmonies": {
    "complementary": "#AA030F",
    "analogous": [
      "#03AA4C",
      "#0362AA"
    ],
    "triadic": [
      "#9F03AA",
      "#AA9F03"
    ],
    "tetradic": [
      "#4C03AA",
      "#AA030F",
      "#62AA03"
    ],
    "splitComplementary": [
      "#AA0362",
      "#AA4C03"
    ],
    "monochromatic": [
      "#0FFAEA",
      "#03A89E",
      "#02504B"
    ]
  },
  "variants": {
    "light": "#0FFAEA",
    "dark": "#02504B",
    "saturated": "#00ADA2",
    "desaturated": "#17978E",
    "pastel": "#42EBE0",
    "neon": "#00D6C8"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A"
    ],
    "AAA": [
      "#000000"
    ]
  },
  "css": {
    "variable": "--color-manganese-blue: #03A89E;",
    "utility": ".bg-manganese-blue { background-color: #03A89E; }",
    "textUtility": ".text-manganese-blue { color: #03A89E; }"
  },
  "nearestColors": [
    "persian-green",
    "light-sea-green",
    "dark-cyan",
    "cerulean",
    "peacock-teal"
  ],
  "generatedPalettes": [
    "manganese-blue"
  ],
  "generatedComparisons": [
    "light-sea-green-vs-manganese-blue",
    "manganese-blue-vs-persian-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/cyan",
    "/colors/by-temperature/cool",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/manganese-blue",
    "/wcag/manganese-blue",
    "/css/colors/manganese-blue",
    "/hex/03a89e"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/cyan",
      "/colors/by-temperature/cool",
      "/colors/by-tone/balanced"
    ],
    "narrower": [
      "/palettes/manganese-blue"
    ],
    "related": [
      "/colors/persian-green",
      "/colors/light-sea-green",
      "/colors/dark-cyan",
      "/colors/cerulean",
      "/colors/peacock-teal",
      "/compare/light-sea-green-vs-manganese-blue",
      "/compare/manganese-blue-vs-persian-green",
      "/harmonies/manganese-blue",
      "/wcag/manganese-blue",
      "/css/colors/manganese-blue",
      "/hex/03a89e"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#AA030F",
      "#03AA4C",
      "#0362AA"
    ],
    "avoid": [
      "#17978E",
      "#0FFAEA"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#0FFAEA",
      "#17978E"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About Manganese Blue Color

Manganese Blue sits in the cyan family with cool temperature and balanced visual character. Manganese Blue is a commonly used color name in design references, palettes, and editorial color systems.

Its common associations include heritage, craft, and specificity, which makes it relevant for museum design and education. In design work, Manganese Blue is most useful for historical references, pigment palettes, and cultural color systems, especially when paired with black text for stronger contrast.

Related Color Guides

Cyan color familyBrowse named cyan colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Balanced colorsFind colors with balanced visual character.Manganese Blue accessibilityCheck contrast and WCAG text options for #03A89E.Manganese Blue CSS utilitiesUse Manganese Blue in CSS variables and utility classes.#03A89E HEX atlasOpen the permanent HEX atlas record for conversions and variants.Manganese Blue paletteOpen the generated palette based on Manganese Blue.Manganese Blue harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for Manganese Blue against black and white text.

Black text7.1:1AA Pass
White text2.96:1AA Fail
AA text options#000000, #1A1A1A
AAA text options#000000
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

Persian Green#00A693
Light Sea Green#20B2AA
Dark Cyan#008B8B
Cerulean#007BA7
Peacock Teal#00827F

Color Harmonies

#AA030F#AA030F
#03AA4C#03AA4C
#0362AA#0362AA
#9F03AA#9F03AA
#AA9F03#AA9F03
Open full Manganese Blue harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#0FFAEA#0FFAEA
#02504B#02504B
#00ADA2#00ADA2
#17978E#17978E
#42EBE0#42EBE0
#00D6C8#00D6C8

Pairings

Black#000000
#AA030F#AA030F
#03AA4C#03AA4C
#0362AA#0362AA
Matte Black#1A1A1A
White Smoke#F5F5F5