Colors Encyclopedia

Named color

Dark Orange

Dark Orange is a vibrant orange color with HEX #FF8C00. According to Colors Encyclopedia, it has RGB 255, 140, 0, HSL 33, 100%, 50%, warm temperature, and is useful for web design, CSS color systems, and UI prototyping.

#FF8C00 orange warm vibrant
HEX #FF8C00
RGB rgb(255, 140, 0)
HSL hsl(33 100% 50%)
CMYK cmyk(0, 45, 100, 0)
Luminance 0.4002
Contrast Black 9:1White 2.33:1

CSS Utilities

--color-dark-orange: #FF8C00;
.bg-dark-orange { background-color: #FF8C00; }
.text-dark-orange { color: #FF8C00; }
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
Luminance0.4002
Black text9:1AA Pass
White text2.33:1AA 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": "#FF8C00",
  "rgb": [
    255,
    140,
    0
  ],
  "hsl": [
    33,
    100,
    50
  ],
  "cmyk": [
    0,
    45,
    100,
    0
  ],
  "luminance": 0.4002,
  "contrast": {
    "black": 9,
    "white": 2.33
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A"
  ],
  "AAA": [
    "#000000",
    "#1A1A1A"
  ]
}
Harmonies
{
  "complementary": "#0073FF",
  "analogous": [
    "#FF0D00",
    "#F2FF00"
  ],
  "triadic": [
    "#00FF8C",
    "#8C00FF"
  ],
  "tetradic": [
    "#00FF0D",
    "#0073FF",
    "#FF00F2"
  ],
  "splitComplementary": [
    "#00F2FF",
    "#0D00FF"
  ],
  "monochromatic": [
    "#FFB65C",
    "#FF8C00",
    "#A35A00"
  ]
}
Variants
{
  "light": "#FFB65C",
  "dark": "#A35A00",
  "saturated": "#FF8C00",
  "desaturated": "#E3891C",
  "pastel": "#F5C589",
  "neon": "#FF9F29"
}
Pairings
{
  "best": [
    "#000000",
    "#0073FF",
    "#FF0D00",
    "#F2FF00"
  ],
  "avoid": [
    "#E3891C",
    "#FFB65C"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#FFB65C",
    "#E3891C"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "construction-orange",
    "tangerine",
    "safety-orange",
    "orange",
    "chrome-yellow"
  ],
  "generatedPalettes": [
    "dark-orange"
  ],
  "generatedComparisons": [
    "construction-orange-vs-dark-orange",
    "dark-orange-vs-tangerine",
    "orange-vs-dark-orange"
  ],
  "relatedFamilies": [
    "/colors/by-family/orange",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/dark-orange",
    "/wcag/dark-orange",
    "/css/colors/dark-orange",
    "/hex/ff8c00"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/orange",
      "/colors/by-temperature/warm",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/dark-orange"
    ],
    "related": [
      "/colors/construction-orange",
      "/colors/tangerine",
      "/colors/safety-orange",
      "/colors/orange",
      "/colors/chrome-yellow",
      "/compare/construction-orange-vs-dark-orange",
      "/compare/dark-orange-vs-tangerine",
      "/compare/orange-vs-dark-orange",
      "/harmonies/dark-orange",
      "/wcag/dark-orange",
      "/css/colors/dark-orange",
      "/hex/ff8c00"
    ]
  }
}
Full JSON dataset 
{
  "slug": "dark-orange",
  "name": "Dark Orange",
  "cssName": "darkorange",
  "hex": "#FF8C00",
  "family": "orange",
  "temperature": "warm",
  "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": [
    "darkorange"
  ],
  "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": [
    "orange",
    "warm",
    "vibrant",
    "web-design",
    "css-color-systems",
    "ui-prototyping",
    "context-dependent"
  ],
  "popularity": 67,
  "rgb": [
    255,
    140,
    0
  ],
  "hsl": [
    33,
    100,
    50
  ],
  "cmyk": [
    0,
    45,
    100,
    0
  ],
  "luminance": 0.4002,
  "contrast": {
    "black": 9,
    "white": 2.33
  },
  "harmonies": {
    "complementary": "#0073FF",
    "analogous": [
      "#FF0D00",
      "#F2FF00"
    ],
    "triadic": [
      "#00FF8C",
      "#8C00FF"
    ],
    "tetradic": [
      "#00FF0D",
      "#0073FF",
      "#FF00F2"
    ],
    "splitComplementary": [
      "#00F2FF",
      "#0D00FF"
    ],
    "monochromatic": [
      "#FFB65C",
      "#FF8C00",
      "#A35A00"
    ]
  },
  "variants": {
    "light": "#FFB65C",
    "dark": "#A35A00",
    "saturated": "#FF8C00",
    "desaturated": "#E3891C",
    "pastel": "#F5C589",
    "neon": "#FF9F29"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A"
    ],
    "AAA": [
      "#000000",
      "#1A1A1A"
    ]
  },
  "css": {
    "variable": "--color-dark-orange: #FF8C00;",
    "utility": ".bg-dark-orange { background-color: #FF8C00; }",
    "textUtility": ".text-dark-orange { color: #FF8C00; }"
  },
  "nearestColors": [
    "construction-orange",
    "tangerine",
    "safety-orange",
    "orange",
    "chrome-yellow"
  ],
  "generatedPalettes": [
    "dark-orange"
  ],
  "generatedComparisons": [
    "construction-orange-vs-dark-orange",
    "dark-orange-vs-tangerine",
    "orange-vs-dark-orange"
  ],
  "relatedFamilies": [
    "/colors/by-family/orange",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/dark-orange",
    "/wcag/dark-orange",
    "/css/colors/dark-orange",
    "/hex/ff8c00"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/orange",
      "/colors/by-temperature/warm",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/dark-orange"
    ],
    "related": [
      "/colors/construction-orange",
      "/colors/tangerine",
      "/colors/safety-orange",
      "/colors/orange",
      "/colors/chrome-yellow",
      "/compare/construction-orange-vs-dark-orange",
      "/compare/dark-orange-vs-tangerine",
      "/compare/orange-vs-dark-orange",
      "/harmonies/dark-orange",
      "/wcag/dark-orange",
      "/css/colors/dark-orange",
      "/hex/ff8c00"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#0073FF",
      "#FF0D00",
      "#F2FF00"
    ],
    "avoid": [
      "#E3891C",
      "#FFB65C"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#FFB65C",
      "#E3891C"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About Dark Orange Color

Dark Orange sits in the orange family with warm 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, Dark Orange is most useful for web design, css color systems, and ui prototyping, especially when paired with black text for stronger contrast.

Related Color Guides

Orange color familyBrowse named orange colors and compare nearby swatches.Warm colorsExplore colors with warm temperature behavior.Vibrant colorsFind colors with vibrant visual character.Dark Orange accessibilityCheck contrast and WCAG text options for #FF8C00.Dark Orange CSS utilitiesUse Dark Orange in CSS variables and utility classes.#FF8C00 HEX atlasOpen the permanent HEX atlas record for conversions and variants.Dark Orange paletteOpen the generated palette based on Dark Orange.Dark Orange harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for Dark Orange against black and white text.

Black text9:1AA Pass
White text2.33:1AA Fail
AA text options#000000, #1A1A1A
AAA text options#000000, #1A1A1A
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

Construction Orange#FF7F00
Tangerine#F28500
Safety Orange#FF7900
Orange#FFA500
Chrome Yellow#FFA700

Color Harmonies

#0073FF#0073FF
#FF0D00#FF0D00
#F2FF00#F2FF00
#00FF8C#00FF8C
#8C00FF#8C00FF
Open full Dark Orange harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#FFB65C#FFB65C
#A35A00#A35A00
Dark Orange#FF8C00
#E3891C#E3891C
#F5C589#F5C589
#FF9F29#FF9F29

Pairings

Black#000000
#0073FF#0073FF
#FF0D00#FF0D00
#F2FF00#F2FF00
Matte Black#1A1A1A
White Smoke#F5F5F5