Colors Encyclopedia

Named color

Sky Blue

Sky Blue color #87CEEB: RGB 135, 206, 235 and HSL 197°, 71%, 73%. Explore its cool blue profile, contrast, CSS, palettes and harmonies.

#87CEEB blue cool balanced
HEX #87CEEB
RGB rgb(135, 206, 235)
HSL hsl(197 71% 73%)
CMYK cmyk(43, 12, 0, 8)
Luminance 0.5529
Contrast Black 12.06:1White 1.74:1

Use this color

Create with Sky Blue

Open a professional color tool with #87CEEB 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 Sky 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-sky-blue: #87CEEB;
.bg-sky-blue { background-color: #87CEEB; }
.text-sky-blue { color: #87CEEB; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color meaning and use

About Sky Blue Color

Sky Blue uses HEX #87CEEB, RGB 135, 206, 235, and HSL 197°, 71%, 73%. The dataset classifies it in the blue family with cool temperature and balanced visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.5529; black contrast is 12.06:1 and white contrast is 1.74:1, making black the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Sky Blue against black and white text.

Black text12.06:1AA Pass
White text1.74:1AA Fail
AA text options#000000, #1A1A1A, #36454F
AAA text options#000000, #1A1A1A
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Sky Blue Color Reference Infographic

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

1200 × 800
Sky Blue color reference infographic showing #87CEEB, RGB and HSL values, a coordinated palette, and black and white text contrast.
Sky Blue color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#EBA589#EBA589#89EBD6#89EBD6#899EEB#899EEB#EB89CF#EB89CF#CFEB89#CFEB89
Open full Sky Blue harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#D8EFF8#D8EFF8#3BB0DE#3BB0DE#7AD6FA#7AD6FA#98C9DC#98C9DC#F7FBFD#F7FBFD#9EE4FF#9EE4FF

Pairings

Black#000000#EBA589#EBA589#89EBD6#89EBD6#899EEB#899EEBMatte 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
Luminance0.5529
Black text12.06:1AA Pass
White text1.74:1AA 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": "#87CEEB",
  "rgb": [
    135,
    206,
    235
  ],
  "hsl": [
    197,
    71,
    73
  ],
  "cmyk": [
    43,
    12,
    0,
    8
  ],
  "luminance": 0.5529,
  "contrast": {
    "black": 12.06,
    "white": 1.74
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A",
    "#36454F"
  ],
  "AAA": [
    "#000000",
    "#1A1A1A"
  ]
}
Harmonies
{
  "complementary": "#EBA589",
  "analogous": [
    "#89EBD6",
    "#899EEB"
  ],
  "triadic": [
    "#EB89CF",
    "#CFEB89"
  ],
  "tetradic": [
    "#D689EB",
    "#EBA589",
    "#9EEB89"
  ],
  "splitComplementary": [
    "#EB899E",
    "#EBD689"
  ],
  "monochromatic": [
    "#D8EFF8",
    "#87CEEB",
    "#3BB0DE"
  ]
}
Variants
{
  "light": "#D8EFF8",
  "dark": "#3BB0DE",
  "saturated": "#7AD6FA",
  "desaturated": "#98C9DC",
  "pastel": "#F7FBFD",
  "neon": "#9EE4FF"
}
Pairings
{
  "best": [
    "#000000",
    "#EBA589",
    "#89EBD6",
    "#899EEB"
  ],
  "avoid": [
    "#98C9DC",
    "#D8EFF8"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#D8EFF8",
    "#98C9DC"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "baby-blue",
    "light-sky-blue",
    "maya-blue",
    "aquamarine-blue",
    "glacier-blue"
  ],
  "generatedPalettes": [
    "sky-blue"
  ],
  "generatedComparisons": [
    "baby-blue-vs-sky-blue",
    "glacier-blue-vs-sky-blue",
    "light-sky-blue-vs-sky-blue"
  ],
  "relatedFamilies": [
    "/colors/by-family/blue",
    "/colors/by-temperature/cool",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/sky-blue",
    "/wcag/sky-blue",
    "/css/colors/sky-blue",
    "/hex/87ceeb",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/blue",
      "/colors/by-temperature/cool",
      "/colors/by-tone/balanced"
    ],
    "narrower": [
      "/palettes/sky-blue"
    ],
    "related": [
      "/colors/baby-blue",
      "/colors/light-sky-blue",
      "/colors/maya-blue",
      "/colors/aquamarine-blue",
      "/colors/glacier-blue",
      "/compare/baby-blue-vs-sky-blue",
      "/compare/glacier-blue-vs-sky-blue",
      "/compare/light-sky-blue-vs-sky-blue",
      "/harmonies/sky-blue",
      "/wcag/sky-blue",
      "/css/colors/sky-blue",
      "/hex/87ceeb",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "sky-blue",
  "name": "Sky Blue",
  "cssName": "skyblue",
  "hex": "#87CEEB",
  "family": "blue",
  "temperature": "cool",
  "tone": [
    "balanced"
  ],
  "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": [
    "skyblue"
  ],
  "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": [
    "blue",
    "cool",
    "balanced",
    "web-design",
    "css-color-systems",
    "ui-prototyping",
    "context-dependent"
  ],
  "popularity": 63,
  "rgb": [
    135,
    206,
    235
  ],
  "hsl": [
    197,
    71,
    73
  ],
  "cmyk": [
    43,
    12,
    0,
    8
  ],
  "luminance": 0.5529,
  "contrast": {
    "black": 12.06,
    "white": 1.74
  },
  "harmonies": {
    "complementary": "#EBA589",
    "analogous": [
      "#89EBD6",
      "#899EEB"
    ],
    "triadic": [
      "#EB89CF",
      "#CFEB89"
    ],
    "tetradic": [
      "#D689EB",
      "#EBA589",
      "#9EEB89"
    ],
    "splitComplementary": [
      "#EB899E",
      "#EBD689"
    ],
    "monochromatic": [
      "#D8EFF8",
      "#87CEEB",
      "#3BB0DE"
    ]
  },
  "variants": {
    "light": "#D8EFF8",
    "dark": "#3BB0DE",
    "saturated": "#7AD6FA",
    "desaturated": "#98C9DC",
    "pastel": "#F7FBFD",
    "neon": "#9EE4FF"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A",
      "#36454F"
    ],
    "AAA": [
      "#000000",
      "#1A1A1A"
    ]
  },
  "css": {
    "variable": "--color-sky-blue: #87CEEB;",
    "utility": ".bg-sky-blue { background-color: #87CEEB; }",
    "textUtility": ".text-sky-blue { color: #87CEEB; }"
  },
  "nearestColors": [
    "baby-blue",
    "light-sky-blue",
    "maya-blue",
    "aquamarine-blue",
    "glacier-blue"
  ],
  "generatedPalettes": [
    "sky-blue"
  ],
  "generatedComparisons": [
    "baby-blue-vs-sky-blue",
    "glacier-blue-vs-sky-blue",
    "light-sky-blue-vs-sky-blue"
  ],
  "relatedFamilies": [
    "/colors/by-family/blue",
    "/colors/by-temperature/cool",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/sky-blue",
    "/wcag/sky-blue",
    "/css/colors/sky-blue",
    "/hex/87ceeb",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/blue",
      "/colors/by-temperature/cool",
      "/colors/by-tone/balanced"
    ],
    "narrower": [
      "/palettes/sky-blue"
    ],
    "related": [
      "/colors/baby-blue",
      "/colors/light-sky-blue",
      "/colors/maya-blue",
      "/colors/aquamarine-blue",
      "/colors/glacier-blue",
      "/compare/baby-blue-vs-sky-blue",
      "/compare/glacier-blue-vs-sky-blue",
      "/compare/light-sky-blue-vs-sky-blue",
      "/harmonies/sky-blue",
      "/wcag/sky-blue",
      "/css/colors/sky-blue",
      "/hex/87ceeb",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#EBA589",
      "#89EBD6",
      "#899EEB"
    ],
    "avoid": [
      "#98C9DC",
      "#D8EFF8"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#D8EFF8",
      "#98C9DC"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Baby Blue#89CFF0
Light Sky Blue#87CEFA
Maya Blue#73C2FB
Aquamarine Blue#6BCAE2
Glacier Blue#78B9D2

Related Color Guides

Blue color familyBrowse named blue colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Balanced colorsFind colors with balanced visual character.Sky Blue accessibilityCheck contrast and WCAG text options for #87CEEB.Sky Blue CSS utilitiesUse Sky Blue in CSS variables and utility classes.#87CEEB HEX atlasOpen the permanent HEX atlas record for conversions and variants.Sky Blue paletteOpen the generated palette based on Sky Blue.Sky Blue harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.