Colors Encyclopedia

Named color

Dark Olive Green

Dark Olive Green is an earth tone green color with HEX #556B2F. According to Colors Encyclopedia, it has RGB 85, 107, 47, HSL 82, 39%, 30%, cool temperature, and is useful for web design, CSS color systems, and UI prototyping.

#556B2F green cool earth-tone
HEX #556B2F
RGB rgb(85, 107, 47)
HSL hsl(82 39% 30%)
CMYK cmyk(21, 0, 56, 58)
Luminance 0.1265
Contrast Black 3.53:1White 5.95:1

CSS Utilities

--color-dark-olive-green: #556B2F;
.bg-dark-olive-green { background-color: #556B2F; }
.text-dark-olive-green { color: #556B2F; }
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
Luminance0.1265
Black text3.53:1AA Fail
White text5.95:1AA 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": "#556B2F",
  "rgb": [
    85,
    107,
    47
  ],
  "hsl": [
    82,
    39,
    30
  ],
  "cmyk": [
    21,
    0,
    56,
    58
  ],
  "luminance": 0.1265,
  "contrast": {
    "black": 3.53,
    "white": 5.95
  }
}
WCAG
{
  "AA": [
    "#FFFFFF",
    "#F5F5F5"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#452F6A",
  "analogous": [
    "#6A622F",
    "#376A2F"
  ],
  "triadic": [
    "#2F546A",
    "#6A2F54"
  ],
  "tetradic": [
    "#2F6A62",
    "#452F6A",
    "#6A2F37"
  ],
  "splitComplementary": [
    "#2F376A",
    "#622F6A"
  ],
  "monochromatic": [
    "#87AA4B",
    "#556B2F",
    "#222B13"
  ]
}
Variants
{
  "light": "#87AA4B",
  "dark": "#222B13",
  "saturated": "#597B1E",
  "desaturated": "#505A3F",
  "pastel": "#94A871",
  "neon": "#7BC200"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#452F6A",
    "#6A622F",
    "#376A2F"
  ],
  "avoid": [
    "#505A3F",
    "#87AA4B"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#87AA4B",
    "#505A3F"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "moss-deep",
    "fern-frond",
    "fern-green",
    "hunter-green",
    "olive-green"
  ],
  "generatedPalettes": [
    "dark-olive-green"
  ],
  "generatedComparisons": [
    "dark-olive-green-vs-fern-frond",
    "dark-olive-green-vs-moss-deep",
    "fern-green-vs-dark-olive-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/green",
    "/colors/by-temperature/cool",
    "/colors/by-tone/earth-tone"
  ],
  "relatedTools": [
    "/harmonies/dark-olive-green",
    "/wcag/dark-olive-green",
    "/css/colors/dark-olive-green",
    "/hex/556b2f"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/green",
      "/colors/by-temperature/cool",
      "/colors/by-tone/earth-tone"
    ],
    "narrower": [
      "/palettes/dark-olive-green"
    ],
    "related": [
      "/colors/moss-deep",
      "/colors/fern-frond",
      "/colors/fern-green",
      "/colors/hunter-green",
      "/colors/olive-green",
      "/compare/dark-olive-green-vs-fern-frond",
      "/compare/dark-olive-green-vs-moss-deep",
      "/compare/fern-green-vs-dark-olive-green",
      "/harmonies/dark-olive-green",
      "/wcag/dark-olive-green",
      "/css/colors/dark-olive-green",
      "/hex/556b2f"
    ]
  }
}
Full JSON dataset 
{
  "slug": "dark-olive-green",
  "name": "Dark Olive Green",
  "cssName": "darkolivegreen",
  "hex": "#556B2F",
  "family": "green",
  "temperature": "cool",
  "tone": [
    "earth-tone"
  ],
  "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": [
    "darkolivegreen"
  ],
  "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": [
    "green",
    "cool",
    "earth-tone",
    "web-design",
    "css-color-systems",
    "ui-prototyping",
    "context-dependent"
  ],
  "popularity": 67,
  "rgb": [
    85,
    107,
    47
  ],
  "hsl": [
    82,
    39,
    30
  ],
  "cmyk": [
    21,
    0,
    56,
    58
  ],
  "luminance": 0.1265,
  "contrast": {
    "black": 3.53,
    "white": 5.95
  },
  "harmonies": {
    "complementary": "#452F6A",
    "analogous": [
      "#6A622F",
      "#376A2F"
    ],
    "triadic": [
      "#2F546A",
      "#6A2F54"
    ],
    "tetradic": [
      "#2F6A62",
      "#452F6A",
      "#6A2F37"
    ],
    "splitComplementary": [
      "#2F376A",
      "#622F6A"
    ],
    "monochromatic": [
      "#87AA4B",
      "#556B2F",
      "#222B13"
    ]
  },
  "variants": {
    "light": "#87AA4B",
    "dark": "#222B13",
    "saturated": "#597B1E",
    "desaturated": "#505A3F",
    "pastel": "#94A871",
    "neon": "#7BC200"
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-dark-olive-green: #556B2F;",
    "utility": ".bg-dark-olive-green { background-color: #556B2F; }",
    "textUtility": ".text-dark-olive-green { color: #556B2F; }"
  },
  "nearestColors": [
    "moss-deep",
    "fern-frond",
    "fern-green",
    "hunter-green",
    "olive-green"
  ],
  "generatedPalettes": [
    "dark-olive-green"
  ],
  "generatedComparisons": [
    "dark-olive-green-vs-fern-frond",
    "dark-olive-green-vs-moss-deep",
    "fern-green-vs-dark-olive-green"
  ],
  "relatedFamilies": [
    "/colors/by-family/green",
    "/colors/by-temperature/cool",
    "/colors/by-tone/earth-tone"
  ],
  "relatedTools": [
    "/harmonies/dark-olive-green",
    "/wcag/dark-olive-green",
    "/css/colors/dark-olive-green",
    "/hex/556b2f"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/green",
      "/colors/by-temperature/cool",
      "/colors/by-tone/earth-tone"
    ],
    "narrower": [
      "/palettes/dark-olive-green"
    ],
    "related": [
      "/colors/moss-deep",
      "/colors/fern-frond",
      "/colors/fern-green",
      "/colors/hunter-green",
      "/colors/olive-green",
      "/compare/dark-olive-green-vs-fern-frond",
      "/compare/dark-olive-green-vs-moss-deep",
      "/compare/fern-green-vs-dark-olive-green",
      "/harmonies/dark-olive-green",
      "/wcag/dark-olive-green",
      "/css/colors/dark-olive-green",
      "/hex/556b2f"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#452F6A",
      "#6A622F",
      "#376A2F"
    ],
    "avoid": [
      "#505A3F",
      "#87AA4B"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#87AA4B",
      "#505A3F"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About Dark Olive Green Color

Dark Olive Green sits in the green family with cool temperature and earth tone 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 Olive Green is most useful for web design, css color systems, and ui prototyping, especially when paired with white text for stronger contrast.

Related Color Guides

Green color familyBrowse named green colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Earth Tone colorsFind colors with earth tone visual character.Dark Olive Green accessibilityCheck contrast and WCAG text options for #556B2F.Dark Olive Green CSS utilitiesUse Dark Olive Green in CSS variables and utility classes.#556B2F HEX atlasOpen the permanent HEX atlas record for conversions and variants.Dark Olive Green paletteOpen the generated palette based on Dark Olive Green.Dark Olive Green harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for Dark Olive Green against black and white text.

Black text3.53:1AA Fail
White text5.95:1AA Pass
AA text options#FFFFFF, #F5F5F5
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

Moss Deep#4A5D23
Fern Frond#657220
Fern Green#4F7942
Hunter Green#355E3B
Olive Green#708238

Color Harmonies

#452F6A#452F6A
#6A622F#6A622F
#376A2F#376A2F
#2F546A#2F546A
#6A2F54#6A2F54
Open full Dark Olive Green harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#87AA4B#87AA4B
#222B13#222B13
#597B1E#597B1E
#505A3F#505A3F
#94A871#94A871
#7BC200#7BC200

Pairings

White#FFFFFF
#452F6A#452F6A
#6A622F#6A622F
#376A2F#376A2F
Matte Black#1A1A1A
White Smoke#F5F5F5