Colors Encyclopedia

Named color

Green Yellow

Green Yellow is a vibrant green color with HEX #ADFF2F. According to Colors Encyclopedia, it has RGB 173, 255, 47, HSL 84, 100%, 59%, cool temperature, and is useful for web design, CSS color systems, and UI prototyping.

#ADFF2F green cool vibrant
HEX #ADFF2F
RGB rgb(173, 255, 47)
HSL hsl(84 100% 59%)
CMYK cmyk(32, 0, 82, 0)
Luminance 0.8061
Contrast Black 17.12:1White 1.23:1

CSS Utilities

--color-green-yellow: #ADFF2F;
.bg-green-yellow { background-color: #ADFF2F; }
.text-green-yellow { color: #ADFF2F; }
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
Luminance0.8061
Black text17.12:1AA Pass
White text1.23:1AA 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": "#ADFF2F",
  "rgb": [
    173,
    255,
    47
  ],
  "hsl": [
    84,
    100,
    59
  ],
  "cmyk": [
    32,
    0,
    82,
    0
  ],
  "luminance": 0.8061,
  "contrast": {
    "black": 17.12,
    "white": 1.23
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A",
    "#36454F"
  ],
  "AAA": [
    "#000000",
    "#1A1A1A",
    "#36454F"
  ]
}
Harmonies
{
  "complementary": "#822EFF",
  "analogous": [
    "#FFEA2E",
    "#43FF2E"
  ],
  "triadic": [
    "#2EABFF",
    "#FF2EAB"
  ],
  "tetradic": [
    "#2EFFEA",
    "#822EFF",
    "#FF2E43"
  ],
  "splitComplementary": [
    "#2E43FF",
    "#EA2EFF"
  ],
  "monochromatic": [
    "#D0FF8A",
    "#ADFF2F",
    "#7DD100"
  ]
}
Variants
{
  "light": "#D0FF8A",
  "dark": "#7DD100",
  "saturated": "#ABFF2E",
  "desaturated": "#A7E845",
  "pastel": "#DDF9B4",
  "neon": "#BCFF57"
}
Pairings
{
  "best": [
    "#000000",
    "#822EFF",
    "#FFEA2E",
    "#43FF2E"
  ],
  "avoid": [
    "#A7E845",
    "#D0FF8A"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#D0FF8A",
    "#A7E845"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "pear",
    "yellow-green",
    "electric-lime",
    "peridot",
    "chartreuse"
  ],
  "generatedPalettes": [
    "green-yellow"
  ],
  "generatedComparisons": [
    "green-yellow-vs-pear",
    "green-yellow-vs-yellow-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/green",
    "/colors/by-temperature/cool",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/green-yellow",
    "/wcag/green-yellow",
    "/css/colors/green-yellow",
    "/hex/adff2f"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/green",
      "/colors/by-temperature/cool",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/green-yellow"
    ],
    "related": [
      "/colors/pear",
      "/colors/yellow-green",
      "/colors/electric-lime",
      "/colors/peridot",
      "/colors/chartreuse",
      "/compare/green-yellow-vs-pear",
      "/compare/green-yellow-vs-yellow-green",
      "/harmonies/green-yellow",
      "/wcag/green-yellow",
      "/css/colors/green-yellow",
      "/hex/adff2f"
    ]
  }
}
Full JSON dataset 
{
  "slug": "green-yellow",
  "name": "Green Yellow",
  "cssName": "greenyellow",
  "hex": "#ADFF2F",
  "family": "green",
  "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": [
    "greenyellow"
  ],
  "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",
    "vibrant",
    "web-design",
    "css-color-systems",
    "ui-prototyping",
    "context-dependent"
  ],
  "popularity": 67,
  "rgb": [
    173,
    255,
    47
  ],
  "hsl": [
    84,
    100,
    59
  ],
  "cmyk": [
    32,
    0,
    82,
    0
  ],
  "luminance": 0.8061,
  "contrast": {
    "black": 17.12,
    "white": 1.23
  },
  "harmonies": {
    "complementary": "#822EFF",
    "analogous": [
      "#FFEA2E",
      "#43FF2E"
    ],
    "triadic": [
      "#2EABFF",
      "#FF2EAB"
    ],
    "tetradic": [
      "#2EFFEA",
      "#822EFF",
      "#FF2E43"
    ],
    "splitComplementary": [
      "#2E43FF",
      "#EA2EFF"
    ],
    "monochromatic": [
      "#D0FF8A",
      "#ADFF2F",
      "#7DD100"
    ]
  },
  "variants": {
    "light": "#D0FF8A",
    "dark": "#7DD100",
    "saturated": "#ABFF2E",
    "desaturated": "#A7E845",
    "pastel": "#DDF9B4",
    "neon": "#BCFF57"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "AAA": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  },
  "css": {
    "variable": "--color-green-yellow: #ADFF2F;",
    "utility": ".bg-green-yellow { background-color: #ADFF2F; }",
    "textUtility": ".text-green-yellow { color: #ADFF2F; }"
  },
  "nearestColors": [
    "pear",
    "yellow-green",
    "electric-lime",
    "peridot",
    "chartreuse"
  ],
  "generatedPalettes": [
    "green-yellow"
  ],
  "generatedComparisons": [
    "green-yellow-vs-pear",
    "green-yellow-vs-yellow-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/green",
    "/colors/by-temperature/cool",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/green-yellow",
    "/wcag/green-yellow",
    "/css/colors/green-yellow",
    "/hex/adff2f"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/green",
      "/colors/by-temperature/cool",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/green-yellow"
    ],
    "related": [
      "/colors/pear",
      "/colors/yellow-green",
      "/colors/electric-lime",
      "/colors/peridot",
      "/colors/chartreuse",
      "/compare/green-yellow-vs-pear",
      "/compare/green-yellow-vs-yellow-green",
      "/harmonies/green-yellow",
      "/wcag/green-yellow",
      "/css/colors/green-yellow",
      "/hex/adff2f"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#822EFF",
      "#FFEA2E",
      "#43FF2E"
    ],
    "avoid": [
      "#A7E845",
      "#D0FF8A"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#D0FF8A",
      "#A7E845"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About Green Yellow Color

Green Yellow sits in the green family with cool temperature and vibrant visual character. Standard CSS named color.

Its common associations include context dependent, which makes it relevant for web interfaces and design systems. In design work, Green Yellow is most useful for web design, css color systems, and ui prototyping, especially when paired with black text for stronger contrast.

Related Color Guides

Green color familyBrowse named green colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Vibrant colorsFind colors with vibrant visual character.Green Yellow accessibilityCheck contrast and WCAG text options for #ADFF2F.Green Yellow CSS utilitiesUse Green Yellow in CSS variables and utility classes.#ADFF2F HEX atlasOpen the permanent HEX atlas record for conversions and variants.Green Yellow paletteOpen the generated palette based on Green Yellow.Green Yellow harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for Green Yellow against black and white text.

Black text17.12:1AA Pass
White text1.23:1AA Fail
AA text options#000000, #1A1A1A, #36454F
AAA text options#000000, #1A1A1A, #36454F
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

Pear#D1E231
Yellow Green#9ACD32
Electric Lime#CCFF00
Peridot#B4C424
Chartreuse#7FFF00

Color Harmonies

#822EFF#822EFF
#FFEA2E#FFEA2E
#43FF2E#43FF2E
#2EABFF#2EABFF
#FF2EAB#FF2EAB
Open full Green Yellow harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#D0FF8A#D0FF8A
#7DD100#7DD100
#ABFF2E#ABFF2E
#A7E845#A7E845
#DDF9B4#DDF9B4
#BCFF57#BCFF57

Pairings

Black#000000
#822EFF#822EFF
#FFEA2E#FFEA2E
#43FF2E#43FF2E
Matte Black#1A1A1A
White Smoke#F5F5F5