Colors Encyclopedia

Named color

Crimson Red

Crimson Red is a balanced red color with HEX #990000. According to Colors Encyclopedia, it has RGB 153, 0, 0, HSL 0, 100%, 30%, warm temperature, and is useful for branding accents, editorial palettes, and product design.

#990000 red warm balanced
HEX #990000
RGB rgb(153, 0, 0)
HSL hsl(0 100% 30%)
CMYK cmyk(0, 100, 100, 40)
Luminance 0.0677
Contrast Black 2.35:1White 8.92:1

CSS Utilities

--color-crimson-red: #990000;
.bg-crimson-red { background-color: #990000; }
.text-crimson-red { color: #990000; }
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
Luminance0.0677
Black text2.35:1AA Fail
White text8.92:1AA 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": "#990000",
  "rgb": [
    153,
    0,
    0
  ],
  "hsl": [
    0,
    100,
    30
  ],
  "cmyk": [
    0,
    100,
    100,
    40
  ],
  "luminance": 0.0677,
  "contrast": {
    "black": 2.35,
    "white": 8.92
  }
}
WCAG
{
  "AA": [
    "#FFFFFF",
    "#F5F5F5"
  ],
  "AAA": [
    "#FFFFFF",
    "#F5F5F5"
  ]
}
Harmonies
{
  "complementary": "#009999",
  "analogous": [
    "#99004D",
    "#994C00"
  ],
  "triadic": [
    "#009900",
    "#000099"
  ],
  "tetradic": [
    "#4D9900",
    "#009999",
    "#4C0099"
  ],
  "splitComplementary": [
    "#00994D",
    "#004C99"
  ],
  "monochromatic": [
    "#F50000",
    "#990000",
    "#3D0000"
  ]
}
Variants
{
  "light": "#F50000",
  "dark": "#3D0000",
  "saturated": "#990000",
  "desaturated": "#881111",
  "pastel": "#EE2B2B",
  "neon": "#C20000"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#009999",
    "#99004D",
    "#994C00"
  ],
  "avoid": [
    "#881111",
    "#F50000"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#F50000",
    "#881111"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "dark-red",
    "cranberry",
    "carmine",
    "maroon",
    "barn-red"
  ],
  "generatedPalettes": [
    "crimson-red"
  ],
  "generatedComparisons": [
    "cranberry-vs-crimson-red",
    "crimson-red-vs-dark-red"
  ],
  "relatedFamilies": [
    "/colors/by-family/red",
    "/colors/by-temperature/warm",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/crimson-red",
    "/wcag/crimson-red",
    "/css/colors/crimson-red",
    "/hex/990000"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/red",
      "/colors/by-temperature/warm",
      "/colors/by-tone/balanced"
    ],
    "narrower": [
      "/palettes/crimson-red"
    ],
    "related": [
      "/colors/dark-red",
      "/colors/cranberry",
      "/colors/carmine",
      "/colors/maroon",
      "/colors/barn-red",
      "/compare/cranberry-vs-crimson-red",
      "/compare/crimson-red-vs-dark-red",
      "/harmonies/crimson-red",
      "/wcag/crimson-red",
      "/css/colors/crimson-red",
      "/hex/990000"
    ]
  }
}
Full JSON dataset 
{
  "slug": "crimson-red",
  "name": "Crimson Red",
  "hex": "#990000",
  "uses": [
    "branding accents",
    "editorial palettes",
    "product design"
  ],
  "psychology": {
    "associations": [
      "energy",
      "intensity",
      "attention"
    ],
    "contexts": [
      "fashion",
      "food",
      "sports",
      "retail"
    ],
    "avoidIn": [
      "low-stimulation wellness interfaces"
    ]
  },
  "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": "red",
  "temperature": "warm",
  "tone": [
    "balanced"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "red",
    "warm",
    "balanced",
    "branding-accents",
    "editorial-palettes",
    "product-design",
    "energy",
    "intensity",
    "attention"
  ],
  "popularity": 80,
  "rgb": [
    153,
    0,
    0
  ],
  "hsl": [
    0,
    100,
    30
  ],
  "cmyk": [
    0,
    100,
    100,
    40
  ],
  "luminance": 0.0677,
  "contrast": {
    "black": 2.35,
    "white": 8.92
  },
  "harmonies": {
    "complementary": "#009999",
    "analogous": [
      "#99004D",
      "#994C00"
    ],
    "triadic": [
      "#009900",
      "#000099"
    ],
    "tetradic": [
      "#4D9900",
      "#009999",
      "#4C0099"
    ],
    "splitComplementary": [
      "#00994D",
      "#004C99"
    ],
    "monochromatic": [
      "#F50000",
      "#990000",
      "#3D0000"
    ]
  },
  "variants": {
    "light": "#F50000",
    "dark": "#3D0000",
    "saturated": "#990000",
    "desaturated": "#881111",
    "pastel": "#EE2B2B",
    "neon": "#C20000"
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  "css": {
    "variable": "--color-crimson-red: #990000;",
    "utility": ".bg-crimson-red { background-color: #990000; }",
    "textUtility": ".text-crimson-red { color: #990000; }"
  },
  "nearestColors": [
    "dark-red",
    "cranberry",
    "carmine",
    "maroon",
    "barn-red"
  ],
  "generatedPalettes": [
    "crimson-red"
  ],
  "generatedComparisons": [
    "cranberry-vs-crimson-red",
    "crimson-red-vs-dark-red"
  ],
  "relatedFamilies": [
    "/colors/by-family/red",
    "/colors/by-temperature/warm",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/crimson-red",
    "/wcag/crimson-red",
    "/css/colors/crimson-red",
    "/hex/990000"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/red",
      "/colors/by-temperature/warm",
      "/colors/by-tone/balanced"
    ],
    "narrower": [
      "/palettes/crimson-red"
    ],
    "related": [
      "/colors/dark-red",
      "/colors/cranberry",
      "/colors/carmine",
      "/colors/maroon",
      "/colors/barn-red",
      "/compare/cranberry-vs-crimson-red",
      "/compare/crimson-red-vs-dark-red",
      "/harmonies/crimson-red",
      "/wcag/crimson-red",
      "/css/colors/crimson-red",
      "/hex/990000"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#009999",
      "#99004D",
      "#994C00"
    ],
    "avoid": [
      "#881111",
      "#F50000"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#F50000",
      "#881111"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About Crimson Red Color

Crimson Red sits in the red family with warm temperature and balanced visual character. Crimson Red is a commonly used color name in design references, palettes, and editorial color systems.

Its common associations include energy, intensity, and attention, which makes it relevant for fashion and food. In design work, Crimson Red is most useful for branding accents, editorial palettes, and product design, especially when paired with white text for stronger contrast.

Related Color Guides

Red color familyBrowse named red colors and compare nearby swatches.Warm colorsExplore colors with warm temperature behavior.Balanced colorsFind colors with balanced visual character.Crimson Red accessibilityCheck contrast and WCAG text options for #990000.Crimson Red CSS utilitiesUse Crimson Red in CSS variables and utility classes.#990000 HEX atlasOpen the permanent HEX atlas record for conversions and variants.Crimson Red paletteOpen the generated palette based on Crimson Red.Crimson Red harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for Crimson Red against black and white text.

Black text2.35:1AA Fail
White text8.92:1AA Pass
AA text options#FFFFFF, #F5F5F5
AAA text options#FFFFFF, #F5F5F5
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

Dark Red#8B0000
Cranberry#9F000F
Carmine#960018
Maroon#800000
Barn Red#7C0A02

Color Harmonies

#009999#009999
#99004D#99004D
#994C00#994C00
#009900#009900
#000099#000099
Open full Crimson Red harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#F50000#F50000
#3D0000#3D0000
Crimson Red#990000
#881111#881111
#EE2B2B#EE2B2B
#C20000#C20000

Pairings

White#FFFFFF
#009999#009999
#99004D#99004D
#994C00#994C00
Matte Black#1A1A1A
White Smoke#F5F5F5