Colors Encyclopedia

Named color

Manganese Blue

Manganese Blue color #03A89E: RGB 3, 168, 158 and HSL 176°, 96%, 34%. Explore its cool cyan profile, contrast, CSS, palettes and harmonies.

#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

Use this color

Create with Manganese Blue

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

Color history, meaning and use · Editorially reviewed

About Manganese Blue Color

Manganese blue was a modern manufactured pigment whose intense cyan-leaning color became familiar in twentieth-century artists’ materials. Getty conservation publications also document its disappearance from manufacture: by 2016 the last producer had stopped more than a decade earlier and remaining supplies were largely depleted. Paint names can persist even after the original colorant is replaced by a mixture.

A digital Manganese Blue can preserve the visual idea without claiming the historic chemistry. It is a clear pool-like accent that sits between cyan and mineral blue, useful with warm concrete, orange, and deep neutral surfaces. For paintings and commercial tubes, however, the label alone is not evidence of composition; scientific analysis may reveal substitutes or mixtures unrelated to the named pigment.

This HEX is not a material specification, authenticity test, proof of pigment composition, or guidance for sourcing discontinued artists’ material.

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

Downloadable color reference infographic

Manganese Blue Color Reference Infographic

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

1200 × 800
Manganese Blue color reference infographic showing #03A89E, RGB and HSL values, a coordinated palette, and black and white text contrast.
Manganese Blue color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

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#0362AAMatte 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
Luminance0.3049
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",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "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",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
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",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "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",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "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

Similar Colors

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

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.