Colors Encyclopedia

Named color

Canary Yellow

Canary Yellow color #FFEF00: RGB 255, 239, 0 and HSL 56°, 100%, 50%. Explore its warm yellow profile, contrast, CSS, palettes and harmonies.

#FFEF00 yellow warm vibrant
HEX #FFEF00
RGB rgb(255, 239, 0)
HSL hsl(56 100% 50%)
CMYK cmyk(0, 6, 100, 0)
Luminance 0.8299
Contrast Black 17.6:1White 1.19:1

Use this color

Create with Canary Yellow

Open a professional color tool with #FFEF00 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 Canary Yellow 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-canary-yellow: #FFEF00;
.bg-canary-yellow { background-color: #FFEF00; }
.text-canary-yellow { color: #FFEF00; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color meaning and use

About Canary Yellow Color

Canary Yellow uses HEX #FFEF00, RGB 255, 239, 0, and HSL 56°, 100%, 50%. The dataset classifies it in the yellow family with warm temperature and vibrant visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.8299; black contrast is 17.6:1 and white contrast is 1.19:1, making black the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Canary Yellow against black and white text.

Black text17.6:1AA Pass
White text1.19:1AA 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

Canary Yellow Color Reference Infographic

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

1200 × 800
Canary Yellow color reference infographic showing #FFEF00, RGB and HSL values, a coordinated palette, and black and white text contrast.
Canary Yellow color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#0011FF#0011FF#FF6E00#FF6E00#91FF00#91FF00#00FFEE#00FFEE#EE00FF#EE00FF
Open full Canary Yellow harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#FFF45C#FFF45C#A39800#A39800#FFEE00#FFEE00#E3D61C#E3D61C#F5EE89#F5EE89#FFF129#FFF129

Pairings

Black#000000#0011FF#0011FF#FF6E00#FF6E00#91FF00#91FF00Matte 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
Luminance0.8299
Black text17.6:1AA Pass
White text1.19:1AA 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": "#FFEF00",
  "rgb": [
    255,
    239,
    0
  ],
  "hsl": [
    56,
    100,
    50
  ],
  "cmyk": [
    0,
    6,
    100,
    0
  ],
  "luminance": 0.8299,
  "contrast": {
    "black": 17.6,
    "white": 1.19
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A",
    "#36454F"
  ],
  "AAA": [
    "#000000",
    "#1A1A1A",
    "#36454F"
  ]
}
Harmonies
{
  "complementary": "#0011FF",
  "analogous": [
    "#FF6E00",
    "#91FF00"
  ],
  "triadic": [
    "#00FFEE",
    "#EE00FF"
  ],
  "tetradic": [
    "#00FF6F",
    "#0011FF",
    "#FF0091"
  ],
  "splitComplementary": [
    "#0091FF",
    "#6E00FF"
  ],
  "monochromatic": [
    "#FFF45C",
    "#FFEF00",
    "#A39800"
  ]
}
Variants
{
  "light": "#FFF45C",
  "dark": "#A39800",
  "saturated": "#FFEE00",
  "desaturated": "#E3D61C",
  "pastel": "#F5EE89",
  "neon": "#FFF129"
}
Pairings
{
  "best": [
    "#000000",
    "#0011FF",
    "#FF6E00",
    "#91FF00"
  ],
  "avoid": [
    "#E3D61C",
    "#FFF45C"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#FFF45C",
    "#E3D61C"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "cadmium-yellow",
    "lemon",
    "golden-yellow",
    "yellow",
    "school-bus-yellow"
  ],
  "generatedPalettes": [
    "canary-yellow"
  ],
  "generatedComparisons": [
    "cadmium-yellow-vs-canary-yellow",
    "canary-yellow-vs-lemon"
  ],
  "relatedFamilies": [
    "/colors/by-family/yellow",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/canary-yellow",
    "/wcag/canary-yellow",
    "/css/colors/canary-yellow",
    "/hex/ffef00",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/yellow",
      "/colors/by-temperature/warm",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/canary-yellow"
    ],
    "related": [
      "/colors/cadmium-yellow",
      "/colors/lemon",
      "/colors/golden-yellow",
      "/colors/yellow",
      "/colors/school-bus-yellow",
      "/compare/cadmium-yellow-vs-canary-yellow",
      "/compare/canary-yellow-vs-lemon",
      "/harmonies/canary-yellow",
      "/wcag/canary-yellow",
      "/css/colors/canary-yellow",
      "/hex/ffef00",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "canary-yellow",
  "name": "Canary Yellow",
  "hex": "#FFEF00",
  "uses": [
    "highlight colors",
    "editorial accents",
    "warm backgrounds"
  ],
  "psychology": {
    "associations": [
      "optimism",
      "clarity",
      "warmth"
    ],
    "contexts": [
      "education",
      "food",
      "lifestyle",
      "print design"
    ],
    "avoidIn": [
      "long-form text backgrounds at high saturation"
    ]
  },
  "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 and editorial color systems."
  },
  "family": "yellow",
  "temperature": "warm",
  "tone": [
    "vibrant"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "yellow",
    "warm",
    "vibrant",
    "highlight-colors",
    "editorial-accents",
    "warm-backgrounds",
    "optimism",
    "clarity",
    "warmth"
  ],
  "popularity": 84,
  "rgb": [
    255,
    239,
    0
  ],
  "hsl": [
    56,
    100,
    50
  ],
  "cmyk": [
    0,
    6,
    100,
    0
  ],
  "luminance": 0.8299,
  "contrast": {
    "black": 17.6,
    "white": 1.19
  },
  "harmonies": {
    "complementary": "#0011FF",
    "analogous": [
      "#FF6E00",
      "#91FF00"
    ],
    "triadic": [
      "#00FFEE",
      "#EE00FF"
    ],
    "tetradic": [
      "#00FF6F",
      "#0011FF",
      "#FF0091"
    ],
    "splitComplementary": [
      "#0091FF",
      "#6E00FF"
    ],
    "monochromatic": [
      "#FFF45C",
      "#FFEF00",
      "#A39800"
    ]
  },
  "variants": {
    "light": "#FFF45C",
    "dark": "#A39800",
    "saturated": "#FFEE00",
    "desaturated": "#E3D61C",
    "pastel": "#F5EE89",
    "neon": "#FFF129"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "AAA": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ]
  },
  "css": {
    "variable": "--color-canary-yellow: #FFEF00;",
    "utility": ".bg-canary-yellow { background-color: #FFEF00; }",
    "textUtility": ".text-canary-yellow { color: #FFEF00; }"
  },
  "nearestColors": [
    "cadmium-yellow",
    "lemon",
    "golden-yellow",
    "yellow",
    "school-bus-yellow"
  ],
  "generatedPalettes": [
    "canary-yellow"
  ],
  "generatedComparisons": [
    "cadmium-yellow-vs-canary-yellow",
    "canary-yellow-vs-lemon"
  ],
  "relatedFamilies": [
    "/colors/by-family/yellow",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/canary-yellow",
    "/wcag/canary-yellow",
    "/css/colors/canary-yellow",
    "/hex/ffef00",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/yellow",
      "/colors/by-temperature/warm",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/canary-yellow"
    ],
    "related": [
      "/colors/cadmium-yellow",
      "/colors/lemon",
      "/colors/golden-yellow",
      "/colors/yellow",
      "/colors/school-bus-yellow",
      "/compare/cadmium-yellow-vs-canary-yellow",
      "/compare/canary-yellow-vs-lemon",
      "/harmonies/canary-yellow",
      "/wcag/canary-yellow",
      "/css/colors/canary-yellow",
      "/hex/ffef00",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#0011FF",
      "#FF6E00",
      "#91FF00"
    ],
    "avoid": [
      "#E3D61C",
      "#FFF45C"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#FFF45C",
      "#E3D61C"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Cadmium Yellow#FFF600
Lemon#FFF700
Golden Yellow#FFDF00
Yellow#FFFF00
School Bus Yellow#FFD800

Related Color Guides

Yellow color familyBrowse named yellow colors and compare nearby swatches.Warm colorsExplore colors with warm temperature behavior.Vibrant colorsFind colors with vibrant visual character.Canary Yellow accessibilityCheck contrast and WCAG text options for #FFEF00.Canary Yellow CSS utilitiesUse Canary Yellow in CSS variables and utility classes.#FFEF00 HEX atlasOpen the permanent HEX atlas record for conversions and variants.Canary Yellow paletteOpen the generated palette based on Canary Yellow.Canary Yellow harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.