HEX atlas value

#90231D

#90231D is a warm red HEX color close to Brick Red. According to Colors Encyclopedia, it converts to RGB 144, 35, 29, HSL 3, 66%, 34%, has luminance 0.0722, and belongs to the balanced group.

red warm balanced

#90231D Sample readable text

HEX #90231D

RGB rgb(144, 35, 29)

HSL hsl(3 66% 34%)

CMYK cmyk(0, 76, 80, 44)

Luminance 0.0722

Contrast Black 2.44:1White 8.59:1

CSS

--color-90231d: #90231D;
.background-90231d { background-color: #90231D; }
.text-90231d { color: #90231D; }

Luminance0.0722

Black text2.44:1AA Fail

White text8.59:1AA 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":"#90231D","rgb":[144,35,29],"hsl":[3,66,34],"cmyk":[0,76,80,44],"luminance":0.0722,"contrast":{"black":2.44,"white":8.59}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":2.44,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":8.59,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"#44110E","hex":"#44110E","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.33,"contrastWhite":15.77,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#7D3431","hex":"#7D3431","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.41,"contrastWhite":8.72,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#901D51","hex":"#901D51","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.48,"contrastWhite":8.47,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Ruby Red","hex":"#9B111E","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.49,"contrastWhite":8.43,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Burnt Umber","hex":"#8A3324","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.58,"contrastWhite":8.14,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["warm red","balanced","balanced red","Brick 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/90231d.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/brick-red.json","https://www.colorsencyclopedia.com/api/colors/burnt-umber.json","https://www.colorsencyclopedia.com/api/colors/ruby-red.json"]}

Harmonies

{"complementary":"#1D8A90","analogous":["#901D51","#905C1D"],"triadic":["#1D9023","#231D90"],"tetradic":["#51901D","#1D8A90","#5C1D90"],"splitComplementary":["#1D905C","#1D5190"],"monochromatic":["#D53C34","#90231D","#44110E"]}

Variants

{"light":"#D53C34","dark":"#44110E","saturated":"#A3120A","desaturated":"#7D3431","pastel":"#CC6661","neon":"#D60B00"}

Nearest named colors

[{"slug":"brick-red","name":"Brick Red","hex":"#8A3324","distance":18.466185312619388},{"slug":"burnt-umber","name":"Burnt Umber","hex":"#8A3324","distance":18.466185312619388},{"slug":"ruby-red","name":"Ruby Red","hex":"#9B111E","distance":21.118712081942874},{"slug":"brown","name":"Brown","hex":"#A52A2A","distance":25.67099530598687},{"slug":"pompeian-red","name":"Pompeian Red","hex":"#A42A04","distance":32.77193921634788}]

HEX meaning and use

About #90231D

#90231D is classified as a warm red value with balanced visual character. #90231D is visually closest to Brick Red, a named red color with HEX #8A3324.

The RGB channels are 144, 35, and 29, with red carrying the strongest channel weight. In HSL, the hue is 3deg with 66% saturation and 34% lightness, so this page treats it as a moderate-saturation, mid-lightness atlas color rather than a generic swatch.

According to Colors Encyclopedia, this HEX value works best for color conversion, WCAG contrast checks, CSS color tokens, and high-attention visual states. Its luminance is 0.0722, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 18.47, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.44:1AA Fail

White text8.59:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #90231D needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.44:1 · Fail

White text#FFFFFF8.59:1 · AAA

Accessible Alternatives

#44110E#FFFFFF text · best 15.77:1#44110E

#7D3431#FFFFFF text · best 8.72:1#7D3431

#901D51#FFFFFF text · best 8.47:1#901D51

Ruby Red#FFFFFF text · best 8.43:1#9B111E

Burnt Umber#FFFFFF text · best 8.14:1#8A3324

Generated Palette

#90231D#90231D

#1D8A90#1D8A90

#901D51#901D51

#905C1D#905C1D

#D53C34#D53C34

#44110E#44110E

Color Harmonies

#1D8A90#1D8A90

#901D51#901D51

#905C1D#905C1D

#1D9023#1D9023

#231D90#231D90

Variants

#D53C34#D53C34

#44110E#44110E

#A3120A#A3120A

#7D3431#7D3431

#CC6661#CC6661

#D60B00#D60B00

Nearest Named Colors

Brick Red#8A3324

Burnt Umber#8A3324

Ruby Red#9B111E

Brown#A52A2A

Pompeian Red#A42A04

#90231D

CSS

Machine-Readable HEX Data (JSON)

About #90231D

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides