Colors Encyclopedia

Named color

Petrol Blue

Petrol Blue is a dark cyan color with HEX #005F6A. According to Colors Encyclopedia, it has RGB 0, 95, 106, HSL 186, 100%, 21%, cool temperature, and is useful for interfaces, brand systems, and technical design.

#005F6A cyan cool dark
HEX #005F6A
RGB rgb(0, 95, 106)
HSL hsl(186 100% 21%)
CMYK cmyk(100, 10, 0, 58)
Luminance 0.0923
Contrast Black 2.85:1White 7.38:1

CSS Utilities

--color-petrol-blue: #005F6A;
.bg-petrol-blue { background-color: #005F6A; }
.text-petrol-blue { color: #005F6A; }
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
Luminance0.0923
Black text2.85:1AA Fail
White text7.38:1AA 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": "#005F6A",
  "rgb": [
    0,
    95,
    106
  ],
  "hsl": [
    186,
    100,
    21
  ],
  "cmyk": [
    100,
    10,
    0,
    58
  ],
  "luminance": 0.0923,
  "contrast": {
    "black": 2.85,
    "white": 7.38
  }
}
WCAG
{
  "AA": [
    "#FFFFFF",
    "#F5F5F5"
  ],
  "AAA": [
    "#FFFFFF"
  ]
}
Harmonies
{
  "complementary": "#6B0B00",
  "analogous": [
    "#006B40",
    "#002B6B"
  ],
  "triadic": [
    "#6B0060",
    "#606B00"
  ],
  "tetradic": [
    "#40006B",
    "#6B0B00",
    "#2B6B00"
  ],
  "splitComplementary": [
    "#6B002B",
    "#6B4000"
  ],
  "monochromatic": [
    "#00B3C7",
    "#005F6A",
    "#000E0F"
  ]
}
Variants
{
  "light": "#00B3C7",
  "dark": "#000E0F",
  "saturated": "#00606B",
  "desaturated": "#0C575F",
  "pastel": "#12C5D9",
  "neon": "#008594"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#6B0B00",
    "#006B40",
    "#002B6B"
  ],
  "avoid": [
    "#0C575F",
    "#00B3C7"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#00B3C7",
    "#0C575F"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "peacock-blue",
    "peacock-green",
    "pine-green",
    "bottle-green",
    "ink-blue"
  ],
  "generatedPalettes": [
    "petrol-blue"
  ],
  "generatedComparisons": [
    "peacock-blue-vs-petrol-blue",
    "petrol-blue-vs-peacock-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/cyan",
    "/colors/by-temperature/cool",
    "/colors/by-tone/dark"
  ],
  "relatedTools": [
    "/harmonies/petrol-blue",
    "/wcag/petrol-blue",
    "/css/colors/petrol-blue",
    "/hex/005f6a"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/cyan",
      "/colors/by-temperature/cool",
      "/colors/by-tone/dark"
    ],
    "narrower": [
      "/palettes/petrol-blue"
    ],
    "related": [
      "/colors/peacock-blue",
      "/colors/peacock-green",
      "/colors/pine-green",
      "/colors/bottle-green",
      "/colors/ink-blue",
      "/compare/peacock-blue-vs-petrol-blue",
      "/compare/petrol-blue-vs-peacock-green",
      "/harmonies/petrol-blue",
      "/wcag/petrol-blue",
      "/css/colors/petrol-blue",
      "/hex/005f6a"
    ]
  }
}
Full JSON dataset 
{
  "slug": "petrol-blue",
  "name": "Petrol Blue",
  "hex": "#005F6A",
  "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": "cyan",
  "temperature": "cool",
  "tone": [
    "dark"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "cyan",
    "cool",
    "dark",
    "interfaces",
    "brand-systems",
    "technical-design",
    "trust",
    "clarity",
    "calm"
  ],
  "popularity": 84,
  "rgb": [
    0,
    95,
    106
  ],
  "hsl": [
    186,
    100,
    21
  ],
  "cmyk": [
    100,
    10,
    0,
    58
  ],
  "luminance": 0.0923,
  "contrast": {
    "black": 2.85,
    "white": 7.38
  },
  "harmonies": {
    "complementary": "#6B0B00",
    "analogous": [
      "#006B40",
      "#002B6B"
    ],
    "triadic": [
      "#6B0060",
      "#606B00"
    ],
    "tetradic": [
      "#40006B",
      "#6B0B00",
      "#2B6B00"
    ],
    "splitComplementary": [
      "#6B002B",
      "#6B4000"
    ],
    "monochromatic": [
      "#00B3C7",
      "#005F6A",
      "#000E0F"
    ]
  },
  "variants": {
    "light": "#00B3C7",
    "dark": "#000E0F",
    "saturated": "#00606B",
    "desaturated": "#0C575F",
    "pastel": "#12C5D9",
    "neon": "#008594"
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": [
      "#FFFFFF"
    ]
  },
  "css": {
    "variable": "--color-petrol-blue: #005F6A;",
    "utility": ".bg-petrol-blue { background-color: #005F6A; }",
    "textUtility": ".text-petrol-blue { color: #005F6A; }"
  },
  "nearestColors": [
    "peacock-blue",
    "peacock-green",
    "pine-green",
    "bottle-green",
    "ink-blue"
  ],
  "generatedPalettes": [
    "petrol-blue"
  ],
  "generatedComparisons": [
    "peacock-blue-vs-petrol-blue",
    "petrol-blue-vs-peacock-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/cyan",
    "/colors/by-temperature/cool",
    "/colors/by-tone/dark"
  ],
  "relatedTools": [
    "/harmonies/petrol-blue",
    "/wcag/petrol-blue",
    "/css/colors/petrol-blue",
    "/hex/005f6a"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/cyan",
      "/colors/by-temperature/cool",
      "/colors/by-tone/dark"
    ],
    "narrower": [
      "/palettes/petrol-blue"
    ],
    "related": [
      "/colors/peacock-blue",
      "/colors/peacock-green",
      "/colors/pine-green",
      "/colors/bottle-green",
      "/colors/ink-blue",
      "/compare/peacock-blue-vs-petrol-blue",
      "/compare/petrol-blue-vs-peacock-green",
      "/harmonies/petrol-blue",
      "/wcag/petrol-blue",
      "/css/colors/petrol-blue",
      "/hex/005f6a"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#6B0B00",
      "#006B40",
      "#002B6B"
    ],
    "avoid": [
      "#0C575F",
      "#00B3C7"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#00B3C7",
      "#0C575F"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About Petrol Blue Color

Petrol Blue sits in the cyan family with cool temperature and dark visual character. Petrol Blue 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, Petrol Blue is most useful for interfaces, brand systems, and technical design, especially when paired with white text for stronger contrast.

Related Color Guides

Cyan color familyBrowse named cyan colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Dark colorsFind colors with dark visual character.Petrol Blue accessibilityCheck contrast and WCAG text options for #005F6A.Petrol Blue CSS utilitiesUse Petrol Blue in CSS variables and utility classes.#005F6A HEX atlasOpen the permanent HEX atlas record for conversions and variants.Petrol Blue paletteOpen the generated palette based on Petrol Blue.Petrol Blue harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for Petrol Blue against black and white text.

Black text2.85:1AA Fail
White text7.38:1AA Pass
AA text options#FFFFFF, #F5F5F5
AAA text options#FFFFFF
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

Peacock Blue#005F69
Peacock Green#006D5B
Pine Green#01796F
Bottle Green#006A4E
Ink Blue#003F5C

Color Harmonies

#6B0B00#6B0B00
#006B40#006B40
#002B6B#002B6B
#6B0060#6B0060
#606B00#606B00
Open full Petrol Blue harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#00B3C7#00B3C7
#000E0F#000E0F
#00606B#00606B
#0C575F#0C575F
#12C5D9#12C5D9
#008594#008594

Pairings

White#FFFFFF
#6B0B00#6B0B00
#006B40#006B40
#002B6B#002B6B
Matte Black#1A1A1A
White Smoke#F5F5F5