HEX atlas value

#8B0000

#8B0000 is a warm red HEX color nearest Dark Red. RGB 139, 0, 0, HSL 0° 100% 27%, luminance 0.0549; view contrast and conversions.

red warm balanced

#8B0000 Sample readable text

HEX #8B0000

RGB rgb(139, 0, 0)

HSL hsl(0 100% 27%)

CMYK cmyk(0, 100, 100, 45)

Luminance 0.0549

Contrast Black 2.1:1White 10.01:1

CSS

--color-8b0000: #8B0000;
.background-8b0000 { background-color: #8B0000; }
.text-8b0000 { color: #8B0000; }

HEX meaning and use

About #8B0000

#8B0000 is classified as a warm red value with balanced visual character. #8B0000 is visually closest to Dark Red, a named red color with HEX #8B0000.

The RGB channels are 139, 0, and 0, with red carrying the strongest channel weight. In HSL, the hue is 0deg with 100% saturation and 27% lightness, so this page treats it as a high-saturation, dark atlas color rather than a generic swatch.

Practical uses for this HEX value include color conversion, WCAG contrast checks, CSS color tokens, and high-attention visual states. Its luminance is 0.0549, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 0.00, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.1:1AA Fail

White text10.01:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #8B0000 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.1:1 · Fail

White text#FFFFFF10.01:1 · AAA

Accessible Alternatives

#2E0000#2E0000 · #FFFFFF text · best 18.82:1 Barn Red#7C0A02 · #FFFFFF text · best 11.04:1 #7B0F0F#7B0F0F · #FFFFFF text · best 10.95:1 Maroon#800000 · #FFFFFF text · best 10.95:1 #8A0000#8A0000 · #FFFFFF text · best 10.1:1

Generated Palette

Dark Red#8B0000

#008A8A#008A8A

#8A0045#8A0045

#8A4500#8A4500

Signal Red#E60000

#2E0000#2E0000

Color Harmonies

#008A8A#008A8A

#8A0045#8A0045

#8A4500#8A4500

#008A00#008A00

#00008A#00008A

Variants

Signal Red#E60000

#2E0000#2E0000

#8A0000#8A0000

#7B0F0F#7B0F0F

#ED1D1D#ED1D1D

#B30000#B30000

Nearest Named Colors

Dark Red#8B0000

Maroon#800000

Crimson Red#990000

Barn Red#7C0A02

Cranberry#9F000F

Luminance0.0549

Black text2.1:1AA Fail

White text10.01:1AA 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

Structured sections

Color systems

{"hex":"#8B0000","rgb":[139,0,0],"hsl":[0,100,27],"cmyk":[0,100,100,45],"luminance":0.0549,"contrast":{"black":2.1,"white":10.01}}

WCAG

{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":2.1,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":10.01,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"#2E0000","hex":"#2E0000","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.12,"contrastWhite":18.82,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Barn Red","hex":"#7C0A02","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.9,"contrastWhite":11.04,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#7B0F0F","hex":"#7B0F0F","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.92,"contrastWhite":10.95,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Maroon","hex":"#800000","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.92,"contrastWhite":10.95,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#8A0000","hex":"#8A0000","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.08,"contrastWhite":10.1,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["warm red","balanced","balanced red","Dark Red adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/8b0000.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/dark-red.json","https://www.colorsencyclopedia.com/api/colors/maroon.json","https://www.colorsencyclopedia.com/api/colors/crimson-red.json"]}

Harmonies

{"complementary":"#008A8A","analogous":["#8A0045","#8A4500"],"triadic":["#008A00","#00008A"],"tetradic":["#458A00","#008A8A","#45008A"],"splitComplementary":["#008A45","#00458A"],"monochromatic":["#E60000","#8B0000","#2E0000"]}

Variants

{"light":"#E60000","dark":"#2E0000","saturated":"#8A0000","desaturated":"#7B0F0F","pastel":"#ED1D1D","neon":"#B30000"}

Nearest named colors

[{"slug":"dark-red","name":"Dark Red","hex":"#8B0000","distance":0},{"slug":"maroon","name":"Maroon","hex":"#800000","distance":11},{"slug":"crimson-red","name":"Crimson Red","hex":"#990000","distance":14},{"slug":"barn-red","name":"Barn Red","hex":"#7C0A02","distance":18.138357147217054},{"slug":"cranberry","name":"Cranberry","hex":"#9F000F","distance":25}]

#8B0000

CSS

About #8B0000

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Machine-Readable HEX Data (JSON)

Related HEX Guides