Colors Encyclopedia

Named color

Cinnabar

Cinnabar color #E44D2E: RGB 228, 77, 46 and HSL 10°, 77%, 54%. Explore its warm red profile, contrast, CSS, palettes and harmonies.

#E44D2E red warm vibrant
HEX #E44D2E
RGB rgb(228, 77, 46)
HSL hsl(10 77% 54%)
CMYK cmyk(0, 66, 80, 11)
Luminance 0.22
Contrast Black 5.4:1White 3.89:1

Use this color

Create with Cinnabar

Open a professional color tool with #E44D2E already applied. Each configuration stays canonical to the tool and can be adjusted or shared.

All color tools
Generate palette & CSS variablesCreate 50–950 tokens and export CSS, SCSS, JSON, or Tailwind.Open configured tool →Open in Gradient StudioStart with Cinnabar and its complementary color.Open configured tool →Mix this colorBlend it with a complementary color and copy color-mix() CSS.Open configured tool →Check contrastOpen the strongest black or white background pairing.Open configured tool →Accessible combinationsReview AA and AAA text options, alternatives, warnings, and UI guidance.Open configured tool →Create glass surfaceUse this color as the tint for a translucent UI panel.Open configured tool →

CSS Utilities

--color-cinnabar: #E44D2E;
.bg-cinnabar { background-color: #E44D2E; }
.text-cinnabar { color: #E44D2E; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color history, meaning and use · Editorially reviewed

About Cinnabar Color

Cinnabar is the naturally occurring mercury sulfide mineral historically ground for a powerful red-orange pigment; vermilion is the corresponding pigment name, including manufactured forms of the same basic compound. Its global history reaches back thousands of years and includes ritual, funerary, and prestige uses.

Cinnabar works digitally as a warm red with more mineral weight than a generic orange-red. It can energize editorial graphics and historically informed palettes, particularly beside black, warm white, and muted stone colors. The material history requires a clear distinction: a screen swatch is harmless light, while real cinnabar and old mercury-containing pigments require expert safety practices.

The HEX value is not a material identification, pigment recipe, or conservation safety assessment.

WCAG Accessibility

Contrast checks for Cinnabar against black and white text.

Black text5.4:1AA Pass
White text3.89:1AA Fail
AA text options#000000
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Cinnabar Color Reference Infographic

Save a high-resolution infographic of Cinnabar, including its color values, coordinated palette, and black and white text contrast.

1200 × 800
Cinnabar color reference infographic showing #E44D2E, RGB and HSL values, a coordinated palette, and black and white text contrast.
Cinnabar color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#2FC6E4#2FC6E4#E42F6C#E42F6C#E4A82F#E4A82F#2FE44D#2FE44D#4D2FE4#4D2FE4
Open full Cinnabar harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#EF9381#EF9381#A22D15#A22D15#FE3C16#FE3C16#CA5F49#CA5F49#EBB3A8#EBB3A8#FF5E3D#FF5E3D

Pairings

Black#000000#2FC6E4#2FC6E4#E42F6C#E42F6C#E4A82F#E4A82FMatte Black#1A1A1AWhite Smoke#F5F5F5

Machine-readable data

Machine-Readable Color Data (JSON)

Perfect for CSS, design systems, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.22
Black text5.4:1AA Pass
White text3.89:1AA 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": "#E44D2E",
  "rgb": [
    228,
    77,
    46
  ],
  "hsl": [
    10,
    77,
    54
  ],
  "cmyk": [
    0,
    66,
    80,
    11
  ],
  "luminance": 0.22,
  "contrast": {
    "black": 5.4,
    "white": 3.89
  }
}
WCAG
{
  "AA": [
    "#000000"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#2FC6E4",
  "analogous": [
    "#E42F6C",
    "#E4A82F"
  ],
  "triadic": [
    "#2FE44D",
    "#4D2FE4"
  ],
  "tetradic": [
    "#6CE42F",
    "#2FC6E4",
    "#A82FE4"
  ],
  "splitComplementary": [
    "#2FE4A8",
    "#2F6CE4"
  ],
  "monochromatic": [
    "#EF9381",
    "#E44D2E",
    "#A22D15"
  ]
}
Variants
{
  "light": "#EF9381",
  "dark": "#A22D15",
  "saturated": "#FE3C16",
  "desaturated": "#CA5F49",
  "pastel": "#EBB3A8",
  "neon": "#FF5E3D"
}
Pairings
{
  "best": [
    "#000000",
    "#2FC6E4",
    "#E42F6C",
    "#E4A82F"
  ],
  "avoid": [
    "#CA5F49",
    "#EF9381"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#EF9381",
    "#CA5F49"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "vermilion",
    "fire-opal",
    "poppy-red",
    "persian-red",
    "neon-orange"
  ],
  "generatedPalettes": [
    "cinnabar"
  ],
  "generatedComparisons": [
    "cinnabar-vs-fire-opal",
    "cinnabar-vs-vermilion"
  ],
  "relatedFamilies": [
    "/colors/by-family/red",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/cinnabar",
    "/wcag/cinnabar",
    "/css/colors/cinnabar",
    "/hex/e44d2e",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/red",
      "/colors/by-temperature/warm",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/cinnabar"
    ],
    "related": [
      "/colors/vermilion",
      "/colors/fire-opal",
      "/colors/poppy-red",
      "/colors/persian-red",
      "/colors/neon-orange",
      "/compare/cinnabar-vs-fire-opal",
      "/compare/cinnabar-vs-vermilion",
      "/harmonies/cinnabar",
      "/wcag/cinnabar",
      "/css/colors/cinnabar",
      "/hex/e44d2e",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "cinnabar",
  "name": "Cinnabar",
  "hex": "#E44D2E",
  "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": [
    "vibrant"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "red",
    "warm",
    "vibrant",
    "branding-accents",
    "editorial-palettes",
    "product-design",
    "energy",
    "intensity",
    "attention"
  ],
  "popularity": 84,
  "rgb": [
    228,
    77,
    46
  ],
  "hsl": [
    10,
    77,
    54
  ],
  "cmyk": [
    0,
    66,
    80,
    11
  ],
  "luminance": 0.22,
  "contrast": {
    "black": 5.4,
    "white": 3.89
  },
  "harmonies": {
    "complementary": "#2FC6E4",
    "analogous": [
      "#E42F6C",
      "#E4A82F"
    ],
    "triadic": [
      "#2FE44D",
      "#4D2FE4"
    ],
    "tetradic": [
      "#6CE42F",
      "#2FC6E4",
      "#A82FE4"
    ],
    "splitComplementary": [
      "#2FE4A8",
      "#2F6CE4"
    ],
    "monochromatic": [
      "#EF9381",
      "#E44D2E",
      "#A22D15"
    ]
  },
  "variants": {
    "light": "#EF9381",
    "dark": "#A22D15",
    "saturated": "#FE3C16",
    "desaturated": "#CA5F49",
    "pastel": "#EBB3A8",
    "neon": "#FF5E3D"
  },
  "wcag": {
    "AA": [
      "#000000"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-cinnabar: #E44D2E;",
    "utility": ".bg-cinnabar { background-color: #E44D2E; }",
    "textUtility": ".text-cinnabar { color: #E44D2E; }"
  },
  "nearestColors": [
    "vermilion",
    "fire-opal",
    "poppy-red",
    "persian-red",
    "neon-orange"
  ],
  "generatedPalettes": [
    "cinnabar"
  ],
  "generatedComparisons": [
    "cinnabar-vs-fire-opal",
    "cinnabar-vs-vermilion"
  ],
  "relatedFamilies": [
    "/colors/by-family/red",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/cinnabar",
    "/wcag/cinnabar",
    "/css/colors/cinnabar",
    "/hex/e44d2e",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/red",
      "/colors/by-temperature/warm",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/cinnabar"
    ],
    "related": [
      "/colors/vermilion",
      "/colors/fire-opal",
      "/colors/poppy-red",
      "/colors/persian-red",
      "/colors/neon-orange",
      "/compare/cinnabar-vs-fire-opal",
      "/compare/cinnabar-vs-vermilion",
      "/harmonies/cinnabar",
      "/wcag/cinnabar",
      "/css/colors/cinnabar",
      "/hex/e44d2e",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#2FC6E4",
      "#E42F6C",
      "#E4A82F"
    ],
    "avoid": [
      "#CA5F49",
      "#EF9381"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#EF9381",
      "#CA5F49"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Vermilion#E34234
Fire Opal#E95C20
Poppy Red#DC343B
Persian Red#CC3333
Neon Orange#FF5F1F

Related Color Guides

Red color familyBrowse named red colors and compare nearby swatches.Warm colorsExplore colors with warm temperature behavior.Vibrant colorsFind colors with vibrant visual character.Cinnabar accessibilityCheck contrast and WCAG text options for #E44D2E.Cinnabar CSS utilitiesUse Cinnabar in CSS variables and utility classes.#E44D2E HEX atlasOpen the permanent HEX atlas record for conversions and variants.Cinnabar paletteOpen the generated palette based on Cinnabar.Cinnabar harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.