Colors Encyclopedia

Named color

Cerulean

Cerulean is a jewel tone blue color with HEX #007BA7. According to Colors Encyclopedia, it has RGB 0, 123, 167, HSL 196, 100%, 33%, cool temperature, and is useful for interfaces, brand systems, and technical design.

#007BA7 blue cool jewel-tone
HEX #007BA7
RGB rgb(0, 123, 167)
HSL hsl(196 100% 33%)
CMYK cmyk(100, 26, 0, 35)
Luminance 0.1696
Contrast Black 4.39:1White 4.78:1

CSS Utilities

--color-cerulean: #007BA7;
.bg-cerulean { background-color: #007BA7; }
.text-cerulean { color: #007BA7; }
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
Luminance0.1696
Black text4.39:1AA Fail
White text4.78:1AA Pass
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": "#007BA7",
  "rgb": [
    0,
    123,
    167
  ],
  "hsl": [
    196,
    100,
    33
  ],
  "cmyk": [
    100,
    26,
    0,
    35
  ],
  "luminance": 0.1696,
  "contrast": {
    "black": 4.39,
    "white": 4.78
  }
}
WCAG
{
  "AA": [
    "#FFFFFF"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#A82D00",
  "analogous": [
    "#00A881",
    "#0027A8"
  ],
  "triadic": [
    "#A8007B",
    "#7BA800"
  ],
  "tetradic": [
    "#8100A8",
    "#A82D00",
    "#27A800"
  ],
  "splitComplementary": [
    "#A80027",
    "#A88100"
  ],
  "monochromatic": [
    "#05BCFF",
    "#007BA7",
    "#00384D"
  ]
}
Variants
{
  "light": "#05BCFF",
  "dark": "#00384D",
  "saturated": "#007BA8",
  "desaturated": "#137396",
  "pastel": "#39BEEF",
  "neon": "#0099D1"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#A82D00",
    "#00A881",
    "#0027A8"
  ],
  "avoid": [
    "#137396",
    "#05BCFF"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#05BCFF",
    "#137396"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "safety-blue",
    "enamel-blue",
    "ocean-blue",
    "sea-blue",
    "dark-cyan"
  ],
  "generatedPalettes": [
    "cerulean"
  ],
  "generatedComparisons": [
    "cerulean-vs-enamel-blue",
    "cerulean-vs-safety-blue",
    "ocean-blue-vs-cerulean"
  ],
  "relatedFamilies": [
    "/colors/by-family/blue",
    "/colors/by-temperature/cool",
    "/colors/by-tone/jewel-tone"
  ],
  "relatedTools": [
    "/harmonies/cerulean",
    "/wcag/cerulean",
    "/css/colors/cerulean",
    "/hex/007ba7"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/blue",
      "/colors/by-temperature/cool",
      "/colors/by-tone/jewel-tone"
    ],
    "narrower": [
      "/palettes/cerulean"
    ],
    "related": [
      "/colors/safety-blue",
      "/colors/enamel-blue",
      "/colors/ocean-blue",
      "/colors/sea-blue",
      "/colors/dark-cyan",
      "/compare/cerulean-vs-enamel-blue",
      "/compare/cerulean-vs-safety-blue",
      "/compare/ocean-blue-vs-cerulean",
      "/harmonies/cerulean",
      "/wcag/cerulean",
      "/css/colors/cerulean",
      "/hex/007ba7"
    ]
  }
}
Full JSON dataset 
{
  "slug": "cerulean",
  "name": "Cerulean",
  "hex": "#007BA7",
  "uses": [
    "interfaces",
    "brand systems",
    "technical design"
  ],
  "psychology": {
    "associations": [
      "trust",
      "clarity",
      "calm"
    ],
    "contexts": [
      "technology",
      "finance",
      "healthcare",
      "navigation"
    ],
    "avoidIn": [
      "high-warmth food palettes"
    ]
  },
  "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": "blue",
  "temperature": "cool",
  "tone": [
    "jewel-tone"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "blue",
    "cool",
    "jewel-tone",
    "interfaces",
    "brand-systems",
    "technical-design",
    "trust",
    "clarity",
    "calm"
  ],
  "popularity": 84,
  "rgb": [
    0,
    123,
    167
  ],
  "hsl": [
    196,
    100,
    33
  ],
  "cmyk": [
    100,
    26,
    0,
    35
  ],
  "luminance": 0.1696,
  "contrast": {
    "black": 4.39,
    "white": 4.78
  },
  "harmonies": {
    "complementary": "#A82D00",
    "analogous": [
      "#00A881",
      "#0027A8"
    ],
    "triadic": [
      "#A8007B",
      "#7BA800"
    ],
    "tetradic": [
      "#8100A8",
      "#A82D00",
      "#27A800"
    ],
    "splitComplementary": [
      "#A80027",
      "#A88100"
    ],
    "monochromatic": [
      "#05BCFF",
      "#007BA7",
      "#00384D"
    ]
  },
  "variants": {
    "light": "#05BCFF",
    "dark": "#00384D",
    "saturated": "#007BA8",
    "desaturated": "#137396",
    "pastel": "#39BEEF",
    "neon": "#0099D1"
  },
  "wcag": {
    "AA": [
      "#FFFFFF"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-cerulean: #007BA7;",
    "utility": ".bg-cerulean { background-color: #007BA7; }",
    "textUtility": ".text-cerulean { color: #007BA7; }"
  },
  "nearestColors": [
    "safety-blue",
    "enamel-blue",
    "ocean-blue",
    "sea-blue",
    "dark-cyan"
  ],
  "generatedPalettes": [
    "cerulean"
  ],
  "generatedComparisons": [
    "cerulean-vs-enamel-blue",
    "cerulean-vs-safety-blue",
    "ocean-blue-vs-cerulean"
  ],
  "relatedFamilies": [
    "/colors/by-family/blue",
    "/colors/by-temperature/cool",
    "/colors/by-tone/jewel-tone"
  ],
  "relatedTools": [
    "/harmonies/cerulean",
    "/wcag/cerulean",
    "/css/colors/cerulean",
    "/hex/007ba7"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/blue",
      "/colors/by-temperature/cool",
      "/colors/by-tone/jewel-tone"
    ],
    "narrower": [
      "/palettes/cerulean"
    ],
    "related": [
      "/colors/safety-blue",
      "/colors/enamel-blue",
      "/colors/ocean-blue",
      "/colors/sea-blue",
      "/colors/dark-cyan",
      "/compare/cerulean-vs-enamel-blue",
      "/compare/cerulean-vs-safety-blue",
      "/compare/ocean-blue-vs-cerulean",
      "/harmonies/cerulean",
      "/wcag/cerulean",
      "/css/colors/cerulean",
      "/hex/007ba7"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#A82D00",
      "#00A881",
      "#0027A8"
    ],
    "avoid": [
      "#137396",
      "#05BCFF"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#05BCFF",
      "#137396"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About Cerulean Color

Cerulean sits in the blue family with cool temperature and jewel tone visual character. Cerulean is a commonly used color name in design references, palettes, and editorial color systems.

Its common associations include trust, clarity, and calm, which makes it relevant for technology and finance. In design work, Cerulean is most useful for interfaces, brand systems, and technical design, especially when paired with white text for stronger contrast.

Related Color Guides

Blue color familyBrowse named blue colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Jewel Tone colorsFind colors with jewel tone visual character.Cerulean accessibilityCheck contrast and WCAG text options for #007BA7.Cerulean CSS utilitiesUse Cerulean in CSS variables and utility classes.#007BA7 HEX atlasOpen the permanent HEX atlas record for conversions and variants.Cerulean paletteOpen the generated palette based on Cerulean.Cerulean harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for Cerulean against black and white text.

Black text4.39:1AA Fail
White text4.78:1AA Pass
AA text options#FFFFFF
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

Safety Blue#0067A5
Enamel Blue#0067A0
Ocean Blue#0077BE
Sea Blue#006994
Dark Cyan#008B8B

Color Harmonies

#A82D00#A82D00
#00A881#00A881
#0027A8#0027A8
#A8007B#A8007B
#7BA800#7BA800
Open full Cerulean harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#05BCFF#05BCFF
#00384D#00384D
#007BA8#007BA8
#137396#137396
#39BEEF#39BEEF
#0099D1#0099D1

Pairings

White#FFFFFF
#A82D00#A82D00
#00A881#00A881
#0027A8#0027A8
Matte Black#1A1A1A
White Smoke#F5F5F5