Named color

Medium Aquamarine

Medium Aquamarine color #66CDAA: RGB 102, 205, 170 and HSL 160°, 51%, 60%. Explore its cool green profile, contrast, CSS, palettes and harmonies.

HEX #66CDAA
RGB rgb(102, 205, 170)
HSL hsl(160 51% 60%)
CMYK cmyk(50, 0, 17, 20)
Luminance 0.4939
Contrast Black 10.88:1White 1.93:1

Use this color

Create with Medium Aquamarine

Open a professional color tool with #66CDAA already applied. Each configuration stays canonical to the tool and can be adjusted or shared.

All color tools

CSS Utilities

--color-medium-aquamarine: #66CDAA;
.bg-medium-aquamarine { background-color: #66CDAA; }
.text-medium-aquamarine { color: #66CDAA; }

Color meaning and use

About Medium Aquamarine Color

Medium Aquamarine uses HEX #66CDAA, RGB 102, 205, 170, and HSL 160°, 51%, 60%. 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 0.4939; black contrast is 10.88:1 and white contrast is 1.93:1, making black the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Medium Aquamarine against black and white text.

Black text10.88:1AA Pass
White text1.93:1AA Fail
AA text options#000000, #1A1A1A, #36454F
AAA text options#000000, #1A1A1A

Downloadable color reference infographic

Medium Aquamarine Color Reference Infographic

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

1200 × 800
Medium Aquamarine color reference infographic showing #66CDAA, RGB and HSL values, a coordinated palette, and black and white text contrast.
Medium Aquamarine color reference infographic generated from the verified Colors Encyclopedia dataset.

Color Harmonies

Variants

Pairings

Machine-readable data

Machine-Readable Color Data (JSON)

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

AI-Ready Dataset v1.0.0
Luminance0.4939
Black text10.88:1AA Pass
White text1.93:1AA 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": "#66CDAA",
  "rgb": [
    102,
    205,
    170
  ],
  "hsl": [
    160,
    51,
    60
  ],
  "cmyk": [
    50,
    0,
    17,
    20
  ],
  "luminance": 0.4939,
  "contrast": {
    "black": 10.88,
    "white": 1.93
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A",
    "#36454F"
  ],
  "AAA": [
    "#000000",
    "#1A1A1A"
  ]
}
Harmonies
{
  "complementary": "#CD6588",
  "analogous": [
    "#65CD76",
    "#65BCCD"
  ],
  "triadic": [
    "#AA65CD",
    "#CDAA65"
  ],
  "tetradic": [
    "#7665CD",
    "#CD6588",
    "#BCCD65"
  ],
  "splitComplementary": [
    "#CD65BC",
    "#CD7665"
  ],
  "monochromatic": [
    "#AAE4D0",
    "#66CDAA",
    "#34A27D"
  ]
}
Variants
{
  "light": "#AAE4D0",
  "dark": "#34A27D",
  "saturated": "#4FE3B2",
  "desaturated": "#7BB7A3",
  "pastel": "#CBE7DD",
  "neon": "#5CFFC9"
}
Pairings
{
  "best": [
    "#000000",
    "#CD6588",
    "#65CD76",
    "#65BCCD"
  ],
  "avoid": [
    "#7BB7A3",
    "#AAE4D0"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#AAE4D0",
    "#7BB7A3"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "verdigris",
    "medium-turquoise",
    "glacier-blue",
    "cadet-blue",
    "dark-sea-green"
  ],
  "generatedPalettes": [
    "medium-aquamarine"
  ],
  "generatedComparisons": [
    "medium-aquamarine-vs-medium-turquoise",
    "medium-aquamarine-vs-verdigris"
  ],
  "relatedFamilies": [
    "/colors/by-family/green",
    "/colors/by-temperature/cool",
    "/colors/by-tone/earth-tone"
  ],
  "relatedTools": [
    "/harmonies/medium-aquamarine",
    "/wcag/medium-aquamarine",
    "/css/colors/medium-aquamarine",
    "/hex/66cdaa",
    "/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/medium-aquamarine"
    ],
    "related": [
      "/colors/verdigris",
      "/colors/medium-turquoise",
      "/colors/glacier-blue",
      "/colors/cadet-blue",
      "/colors/dark-sea-green",
      "/compare/medium-aquamarine-vs-medium-turquoise",
      "/compare/medium-aquamarine-vs-verdigris",
      "/harmonies/medium-aquamarine",
      "/wcag/medium-aquamarine",
      "/css/colors/medium-aquamarine",
      "/hex/66cdaa",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset
{
  "slug": "medium-aquamarine",
  "name": "Medium Aquamarine",
  "cssName": "mediumaquamarine",
  "hex": "#66CDAA",
  "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": [
    "mediumaquamarine"
  ],
  "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": [
    102,
    205,
    170
  ],
  "hsl": [
    160,
    51,
    60
  ],
  "cmyk": [
    50,
    0,
    17,
    20
  ],
  "luminance": 0.4939,
  "contrast": {
    "black": 10.88,
    "white": 1.93
  },
  "harmonies": {
    "complementary": "#CD6588",
    "analogous": [
      "#65CD76",
      "#65BCCD"
    ],
    "triadic": [
      "#AA65CD",
      "#CDAA65"
    ],
    "tetradic": [
      "#7665CD",
      "#CD6588",
      "#BCCD65"
    ],
    "splitComplementary": [
      "#CD65BC",
      "#CD7665"
    ],
    "monochromatic": [
      "#AAE4D0",
      "#66CDAA",
      "#34A27D"
    ]
  },
  "variants": {
    "light": "#AAE4D0",
    "dark": "#34A27D",
    "saturated": "#4FE3B2",
    "desaturated": "#7BB7A3",
    "pastel": "#CBE7DD",
    "neon": "#5CFFC9"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "AAA": [
      "#000000",
      "#1A1A1A"
    ]
  },
  "css": {
    "variable": "--color-medium-aquamarine: #66CDAA;",
    "utility": ".bg-medium-aquamarine { background-color: #66CDAA; }",
    "textUtility": ".text-medium-aquamarine { color: #66CDAA; }"
  },
  "nearestColors": [
    "verdigris",
    "medium-turquoise",
    "glacier-blue",
    "cadet-blue",
    "dark-sea-green"
  ],
  "generatedPalettes": [
    "medium-aquamarine"
  ],
  "generatedComparisons": [
    "medium-aquamarine-vs-medium-turquoise",
    "medium-aquamarine-vs-verdigris"
  ],
  "relatedFamilies": [
    "/colors/by-family/green",
    "/colors/by-temperature/cool",
    "/colors/by-tone/earth-tone"
  ],
  "relatedTools": [
    "/harmonies/medium-aquamarine",
    "/wcag/medium-aquamarine",
    "/css/colors/medium-aquamarine",
    "/hex/66cdaa",
    "/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/medium-aquamarine"
    ],
    "related": [
      "/colors/verdigris",
      "/colors/medium-turquoise",
      "/colors/glacier-blue",
      "/colors/cadet-blue",
      "/colors/dark-sea-green",
      "/compare/medium-aquamarine-vs-medium-turquoise",
      "/compare/medium-aquamarine-vs-verdigris",
      "/harmonies/medium-aquamarine",
      "/wcag/medium-aquamarine",
      "/css/colors/medium-aquamarine",
      "/hex/66cdaa",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#CD6588",
      "#65CD76",
      "#65BCCD"
    ],
    "avoid": [
      "#7BB7A3",
      "#AAE4D0"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#AAE4D0",
      "#7BB7A3"
    ]
  }
}