Colors Encyclopedia

Named color

Cyan

Cyan color #00FFFF: RGB 0, 255, 255 and HSL 180°, 100%, 50%. Explore its cool cyan profile, contrast, CSS, palettes and harmonies.

#00FFFF cyan cool vibrant
HEX #00FFFF
RGB rgb(0, 255, 255)
HSL hsl(180 100% 50%)
CMYK cmyk(100, 0, 0, 0)
Luminance 0.7874
Contrast Black 16.75:1White 1.25:1

Use this color

Create with Cyan

Open a professional color tool with #00FFFF 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 Cyan 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-cyan: #00FFFF;
.bg-cyan { background-color: #00FFFF; }
.text-cyan { color: #00FFFF; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color meaning and use

About Cyan Color

Cyan uses HEX #00FFFF, RGB 0, 255, 255, and HSL 180°, 100%, 50%. The dataset classifies it in the cyan family with cool temperature and vibrant visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.7874; black contrast is 16.75:1 and white contrast is 1.25:1, making black the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Cyan against black and white text.

Black text16.75:1AA Pass
White text1.25:1AA Fail
AA text options#000000, #1A1A1A, #36454F
AAA text options#000000, #1A1A1A, #36454F
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Cyan Color Reference Infographic

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

1200 × 800
Cyan color reference infographic showing #00FFFF, RGB and HSL values, a coordinated palette, and black and white text contrast.
Cyan color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

Red#FF0000#00FF80#00FF80#007FFF#007FFFMagenta#FF00FFYellow#FFFF00
Open full Cyan harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#5CFFFF#5CFFFF#00A3A3#00A3A3Cyan#00FFFF#1CE3E3#1CE3E3#89F5F5#89F5F5#29FFFF#29FFFF

Pairings

Black#000000Red#FF0000#00FF80#00FF80#007FFF#007FFFMatte 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
Luminance0.7874
Black text16.75:1AA Pass
White text1.25:1AA 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": "#00FFFF",
  "rgb": [
    0,
    255,
    255
  ],
  "hsl": [
    180,
    100,
    50
  ],
  "cmyk": [
    100,
    0,
    0,
    0
  ],
  "luminance": 0.7874,
  "contrast": {
    "black": 16.75,
    "white": 1.25
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A",
    "#36454F"
  ],
  "AAA": [
    "#000000",
    "#1A1A1A",
    "#36454F"
  ]
}
Harmonies
{
  "complementary": "#FF0000",
  "analogous": [
    "#00FF80",
    "#007FFF"
  ],
  "triadic": [
    "#FF00FF",
    "#FFFF00"
  ],
  "tetradic": [
    "#7F00FF",
    "#FF0000",
    "#80FF00"
  ],
  "splitComplementary": [
    "#FF0080",
    "#FF8000"
  ],
  "monochromatic": [
    "#5CFFFF",
    "#00FFFF",
    "#00A3A3"
  ]
}
Variants
{
  "light": "#5CFFFF",
  "dark": "#00A3A3",
  "saturated": "#00FFFF",
  "desaturated": "#1CE3E3",
  "pastel": "#89F5F5",
  "neon": "#29FFFF"
}
Pairings
{
  "best": [
    "#000000",
    "#FF0000",
    "#00FF80",
    "#007FFF"
  ],
  "avoid": [
    "#1CE3E3",
    "#5CFFFF"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#5CFFFF",
    "#1CE3E3"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "aqua",
    "deep-sky-blue",
    "dark-turquoise",
    "robin-egg-blue",
    "turquoise"
  ],
  "generatedPalettes": [
    "cyan"
  ],
  "generatedComparisons": [
    "aqua-vs-cyan",
    "cyan-vs-deep-sky-blue"
  ],
  "relatedFamilies": [
    "/colors/by-family/cyan",
    "/colors/by-temperature/cool",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/cyan",
    "/wcag/cyan",
    "/css/colors/cyan",
    "/hex/00ffff",
    "/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/vibrant"
    ],
    "narrower": [
      "/palettes/cyan"
    ],
    "related": [
      "/colors/aqua",
      "/colors/deep-sky-blue",
      "/colors/dark-turquoise",
      "/colors/robin-egg-blue",
      "/colors/turquoise",
      "/compare/aqua-vs-cyan",
      "/compare/cyan-vs-deep-sky-blue",
      "/harmonies/cyan",
      "/wcag/cyan",
      "/css/colors/cyan",
      "/hex/00ffff",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "cyan",
  "name": "Cyan",
  "cssName": "cyan",
  "hex": "#00FFFF",
  "family": "cyan",
  "temperature": "cool",
  "tone": [
    "vibrant"
  ],
  "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": [
    "cyan"
  ],
  "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": [
    "cyan",
    "cool",
    "vibrant",
    "web-design",
    "css-color-systems",
    "ui-prototyping",
    "context-dependent"
  ],
  "popularity": 67,
  "rgb": [
    0,
    255,
    255
  ],
  "hsl": [
    180,
    100,
    50
  ],
  "cmyk": [
    100,
    0,
    0,
    0
  ],
  "luminance": 0.7874,
  "contrast": {
    "black": 16.75,
    "white": 1.25
  },
  "harmonies": {
    "complementary": "#FF0000",
    "analogous": [
      "#00FF80",
      "#007FFF"
    ],
    "triadic": [
      "#FF00FF",
      "#FFFF00"
    ],
    "tetradic": [
      "#7F00FF",
      "#FF0000",
      "#80FF00"
    ],
    "splitComplementary": [
      "#FF0080",
      "#FF8000"
    ],
    "monochromatic": [
      "#5CFFFF",
      "#00FFFF",
      "#00A3A3"
    ]
  },
  "variants": {
    "light": "#5CFFFF",
    "dark": "#00A3A3",
    "saturated": "#00FFFF",
    "desaturated": "#1CE3E3",
    "pastel": "#89F5F5",
    "neon": "#29FFFF"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "AAA": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  },
  "css": {
    "variable": "--color-cyan: #00FFFF;",
    "utility": ".bg-cyan { background-color: #00FFFF; }",
    "textUtility": ".text-cyan { color: #00FFFF; }"
  },
  "nearestColors": [
    "aqua",
    "deep-sky-blue",
    "dark-turquoise",
    "robin-egg-blue",
    "turquoise"
  ],
  "generatedPalettes": [
    "cyan"
  ],
  "generatedComparisons": [
    "aqua-vs-cyan",
    "cyan-vs-deep-sky-blue"
  ],
  "relatedFamilies": [
    "/colors/by-family/cyan",
    "/colors/by-temperature/cool",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/cyan",
    "/wcag/cyan",
    "/css/colors/cyan",
    "/hex/00ffff",
    "/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/vibrant"
    ],
    "narrower": [
      "/palettes/cyan"
    ],
    "related": [
      "/colors/aqua",
      "/colors/deep-sky-blue",
      "/colors/dark-turquoise",
      "/colors/robin-egg-blue",
      "/colors/turquoise",
      "/compare/aqua-vs-cyan",
      "/compare/cyan-vs-deep-sky-blue",
      "/harmonies/cyan",
      "/wcag/cyan",
      "/css/colors/cyan",
      "/hex/00ffff",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#FF0000",
      "#00FF80",
      "#007FFF"
    ],
    "avoid": [
      "#1CE3E3",
      "#5CFFFF"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#5CFFFF",
      "#1CE3E3"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Aqua#00FFFF
Deep Sky Blue#00BFFF
Dark Turquoise#00CED1
Robin Egg Blue#00CCCC
Turquoise#40E0D0

Related Color Guides

Cyan color familyBrowse named cyan colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Vibrant colorsFind colors with vibrant visual character.Cyan accessibilityCheck contrast and WCAG text options for #00FFFF.Cyan CSS utilitiesUse Cyan in CSS variables and utility classes.#00FFFF HEX atlasOpen the permanent HEX atlas record for conversions and variants.Cyan paletteOpen the generated palette based on Cyan.Cyan harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.