Colors Encyclopedia

Named color

Scarlet

Scarlet color #FF2400: RGB 255, 36, 0 and HSL 8°, 100%, 50%. Explore its warm red profile, contrast, CSS, palettes and harmonies.

#FF2400 red warm vibrant
HEX #FF2400
RGB rgb(255, 36, 0)
HSL hsl(8 100% 50%)
CMYK cmyk(0, 86, 100, 0)
Luminance 0.2252
Contrast Black 5.5:1White 3.82:1

Use this color

Create with Scarlet

Open a professional color tool with #FF2400 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 Scarlet 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-scarlet: #FF2400;
.bg-scarlet { background-color: #FF2400; }
.text-scarlet { color: #FF2400; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color meaning and use

About Scarlet Color

Scarlet uses HEX #FF2400, RGB 255, 36, 0, and HSL 8°, 100%, 50%. The dataset classifies it in the red family with warm temperature and vibrant visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.2252; black contrast is 5.5:1 and white contrast is 3.82:1, making black the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Scarlet against black and white text.

Black text5.5:1AA Pass
White text3.82:1AA Fail
AA text options#000000, #1A1A1A
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Scarlet Color Reference Infographic

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

1200 × 800
Scarlet color reference infographic showing #FF2400, RGB and HSL values, a coordinated palette, and black and white text contrast.
Scarlet color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#00DDFF#00DDFF#FF005D#FF005D#FFA200#FFA200#00FF22#00FF22#2200FF#2200FF
Open full Scarlet harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#FF725C#FF725C#A31600#A31600#FF2200#FF2200#E3371C#E3371C#F59889#F59889#FF4529#FF4529

Pairings

Black#000000#00DDFF#00DDFF#FF005D#FF005D#FFA200#FFA200Matte 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
Luminance0.2252
Black text5.5:1AA Pass
White text3.82:1AA 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": "#FF2400",
  "rgb": [
    255,
    36,
    0
  ],
  "hsl": [
    8,
    100,
    50
  ],
  "cmyk": [
    0,
    86,
    100,
    0
  ],
  "luminance": 0.2252,
  "contrast": {
    "black": 5.5,
    "white": 3.82
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#00DDFF",
  "analogous": [
    "#FF005D",
    "#FFA200"
  ],
  "triadic": [
    "#00FF22",
    "#2200FF"
  ],
  "tetradic": [
    "#5EFF00",
    "#00DDFF",
    "#A200FF"
  ],
  "splitComplementary": [
    "#00FFA2",
    "#005EFF"
  ],
  "monochromatic": [
    "#FF725C",
    "#FF2400",
    "#A31600"
  ]
}
Variants
{
  "light": "#FF725C",
  "dark": "#A31600",
  "saturated": "#FF2200",
  "desaturated": "#E3371C",
  "pastel": "#F59889",
  "neon": "#FF4529"
}
Pairings
{
  "best": [
    "#000000",
    "#00DDFF",
    "#FF005D",
    "#FFA200"
  ],
  "avoid": [
    "#E3371C",
    "#FF725C"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#FF725C",
    "#E3371C"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "orange-red",
    "red",
    "international-orange",
    "signal-red",
    "cadmium-red"
  ],
  "generatedPalettes": [
    "scarlet"
  ],
  "generatedComparisons": [
    "orange-red-vs-scarlet",
    "red-vs-scarlet"
  ],
  "relatedFamilies": [
    "/colors/by-family/red",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/scarlet",
    "/wcag/scarlet",
    "/css/colors/scarlet",
    "/hex/ff2400",
    "/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/scarlet"
    ],
    "related": [
      "/colors/orange-red",
      "/colors/red",
      "/colors/international-orange",
      "/colors/signal-red",
      "/colors/cadmium-red",
      "/compare/orange-red-vs-scarlet",
      "/compare/red-vs-scarlet",
      "/harmonies/scarlet",
      "/wcag/scarlet",
      "/css/colors/scarlet",
      "/hex/ff2400",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "scarlet",
  "name": "Scarlet",
  "hex": "#FF2400",
  "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": [
    255,
    36,
    0
  ],
  "hsl": [
    8,
    100,
    50
  ],
  "cmyk": [
    0,
    86,
    100,
    0
  ],
  "luminance": 0.2252,
  "contrast": {
    "black": 5.5,
    "white": 3.82
  },
  "harmonies": {
    "complementary": "#00DDFF",
    "analogous": [
      "#FF005D",
      "#FFA200"
    ],
    "triadic": [
      "#00FF22",
      "#2200FF"
    ],
    "tetradic": [
      "#5EFF00",
      "#00DDFF",
      "#A200FF"
    ],
    "splitComplementary": [
      "#00FFA2",
      "#005EFF"
    ],
    "monochromatic": [
      "#FF725C",
      "#FF2400",
      "#A31600"
    ]
  },
  "variants": {
    "light": "#FF725C",
    "dark": "#A31600",
    "saturated": "#FF2200",
    "desaturated": "#E3371C",
    "pastel": "#F59889",
    "neon": "#FF4529"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-scarlet: #FF2400;",
    "utility": ".bg-scarlet { background-color: #FF2400; }",
    "textUtility": ".text-scarlet { color: #FF2400; }"
  },
  "nearestColors": [
    "orange-red",
    "red",
    "international-orange",
    "signal-red",
    "cadmium-red"
  ],
  "generatedPalettes": [
    "scarlet"
  ],
  "generatedComparisons": [
    "orange-red-vs-scarlet",
    "red-vs-scarlet"
  ],
  "relatedFamilies": [
    "/colors/by-family/red",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/scarlet",
    "/wcag/scarlet",
    "/css/colors/scarlet",
    "/hex/ff2400",
    "/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/scarlet"
    ],
    "related": [
      "/colors/orange-red",
      "/colors/red",
      "/colors/international-orange",
      "/colors/signal-red",
      "/colors/cadmium-red",
      "/compare/orange-red-vs-scarlet",
      "/compare/red-vs-scarlet",
      "/harmonies/scarlet",
      "/wcag/scarlet",
      "/css/colors/scarlet",
      "/hex/ff2400",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#00DDFF",
      "#FF005D",
      "#FFA200"
    ],
    "avoid": [
      "#E3371C",
      "#FF725C"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#FF725C",
      "#E3371C"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Orange Red#FF4500
Red#FF0000
International Orange#FF4F00
Signal Red#E60000
Cadmium Red#E30022

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.Scarlet accessibilityCheck contrast and WCAG text options for #FF2400.Scarlet CSS utilitiesUse Scarlet in CSS variables and utility classes.#FF2400 HEX atlasOpen the permanent HEX atlas record for conversions and variants.Scarlet paletteOpen the generated palette based on Scarlet.Scarlet harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.