Colors Encyclopedia

Named color

Orange Red

Orange Red is a vibrant orange color with HEX #FF4500. According to Colors Encyclopedia, it has RGB 255, 69, 0, HSL 16, 100%, 50%, warm temperature, and is useful for web design, CSS color systems, and UI prototyping.

#FF4500 orange warm vibrant
HEX #FF4500
RGB rgb(255, 69, 0)
HSL hsl(16 100% 50%)
CMYK cmyk(0, 73, 100, 0)
Luminance 0.2552
Contrast Black 6.1:1White 3.44:1

CSS Utilities

--color-orange-red: #FF4500;
.bg-orange-red { background-color: #FF4500; }
.text-orange-red { color: #FF4500; }
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
Luminance0.2552
Black text6.1:1AA Pass
White text3.44:1AA 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": "#FF4500",
  "rgb": [
    255,
    69,
    0
  ],
  "hsl": [
    16,
    100,
    50
  ],
  "cmyk": [
    0,
    73,
    100,
    0
  ],
  "luminance": 0.2552,
  "contrast": {
    "black": 6.1,
    "white": 3.44
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#00BBFF",
  "analogous": [
    "#FF003B",
    "#FFC300"
  ],
  "triadic": [
    "#00FF44",
    "#4400FF"
  ],
  "tetradic": [
    "#3BFF00",
    "#00BBFF",
    "#C300FF"
  ],
  "splitComplementary": [
    "#00FFC4",
    "#003BFF"
  ],
  "monochromatic": [
    "#FF875C",
    "#FF4500",
    "#A32C00"
  ]
}
Variants
{
  "light": "#FF875C",
  "dark": "#A32C00",
  "saturated": "#FF4400",
  "desaturated": "#E3511C",
  "pastel": "#F5A689",
  "neon": "#FF6229"
}
Pairings
{
  "best": [
    "#000000",
    "#00BBFF",
    "#FF003B",
    "#FFC300"
  ],
  "avoid": [
    "#E3511C",
    "#FF875C"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#FF875C",
    "#E3511C"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "international-orange",
    "scarlet",
    "hazard-orange",
    "neon-orange",
    "fire-opal"
  ],
  "generatedPalettes": [
    "orange-red"
  ],
  "generatedComparisons": [
    "international-orange-vs-orange-red",
    "orange-red-vs-scarlet"
  ],
  "relatedFamilies": [
    "/colors/by-family/orange",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/orange-red",
    "/wcag/orange-red",
    "/css/colors/orange-red",
    "/hex/ff4500"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/orange",
      "/colors/by-temperature/warm",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/orange-red"
    ],
    "related": [
      "/colors/international-orange",
      "/colors/scarlet",
      "/colors/hazard-orange",
      "/colors/neon-orange",
      "/colors/fire-opal",
      "/compare/international-orange-vs-orange-red",
      "/compare/orange-red-vs-scarlet",
      "/harmonies/orange-red",
      "/wcag/orange-red",
      "/css/colors/orange-red",
      "/hex/ff4500"
    ]
  }
}
Full JSON dataset 
{
  "slug": "orange-red",
  "name": "Orange Red",
  "cssName": "orangered",
  "hex": "#FF4500",
  "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": [
    "orangered"
  ],
  "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,
    69,
    0
  ],
  "hsl": [
    16,
    100,
    50
  ],
  "cmyk": [
    0,
    73,
    100,
    0
  ],
  "luminance": 0.2552,
  "contrast": {
    "black": 6.1,
    "white": 3.44
  },
  "harmonies": {
    "complementary": "#00BBFF",
    "analogous": [
      "#FF003B",
      "#FFC300"
    ],
    "triadic": [
      "#00FF44",
      "#4400FF"
    ],
    "tetradic": [
      "#3BFF00",
      "#00BBFF",
      "#C300FF"
    ],
    "splitComplementary": [
      "#00FFC4",
      "#003BFF"
    ],
    "monochromatic": [
      "#FF875C",
      "#FF4500",
      "#A32C00"
    ]
  },
  "variants": {
    "light": "#FF875C",
    "dark": "#A32C00",
    "saturated": "#FF4400",
    "desaturated": "#E3511C",
    "pastel": "#F5A689",
    "neon": "#FF6229"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-orange-red: #FF4500;",
    "utility": ".bg-orange-red { background-color: #FF4500; }",
    "textUtility": ".text-orange-red { color: #FF4500; }"
  },
  "nearestColors": [
    "international-orange",
    "scarlet",
    "hazard-orange",
    "neon-orange",
    "fire-opal"
  ],
  "generatedPalettes": [
    "orange-red"
  ],
  "generatedComparisons": [
    "international-orange-vs-orange-red",
    "orange-red-vs-scarlet"
  ],
  "relatedFamilies": [
    "/colors/by-family/orange",
    "/colors/by-temperature/warm",
    "/colors/by-tone/vibrant"
  ],
  "relatedTools": [
    "/harmonies/orange-red",
    "/wcag/orange-red",
    "/css/colors/orange-red",
    "/hex/ff4500"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/orange",
      "/colors/by-temperature/warm",
      "/colors/by-tone/vibrant"
    ],
    "narrower": [
      "/palettes/orange-red"
    ],
    "related": [
      "/colors/international-orange",
      "/colors/scarlet",
      "/colors/hazard-orange",
      "/colors/neon-orange",
      "/colors/fire-opal",
      "/compare/international-orange-vs-orange-red",
      "/compare/orange-red-vs-scarlet",
      "/harmonies/orange-red",
      "/wcag/orange-red",
      "/css/colors/orange-red",
      "/hex/ff4500"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#00BBFF",
      "#FF003B",
      "#FFC300"
    ],
    "avoid": [
      "#E3511C",
      "#FF875C"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#FF875C",
      "#E3511C"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About Orange Red Color

Orange Red 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, Orange Red 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.Orange Red accessibilityCheck contrast and WCAG text options for #FF4500.Orange Red CSS utilitiesUse Orange Red in CSS variables and utility classes.#FF4500 HEX atlasOpen the permanent HEX atlas record for conversions and variants.Orange Red paletteOpen the generated palette based on Orange Red.Orange Red harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for Orange Red against black and white text.

Black text6.1:1AA Pass
White text3.44:1AA Fail
AA text options#000000, #1A1A1A
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

International Orange#FF4F00
Scarlet#FF2400
Hazard Orange#FF6700
Neon Orange#FF5F1F
Fire Opal#E95C20

Color Harmonies

#00BBFF#00BBFF
#FF003B#FF003B
#FFC300#FFC300
#00FF44#00FF44
#4400FF#4400FF
Open full Orange Red harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#FF875C#FF875C
#A32C00#A32C00
#FF4400#FF4400
#E3511C#E3511C
#F5A689#F5A689
#FF6229#FF6229

Pairings

Black#000000
#00BBFF#00BBFF
#FF003B#FF003B
#FFC300#FFC300
Matte Black#1A1A1A
White Smoke#F5F5F5