HEX atlas value

#A72B1B

#A72B1B is a warm red HEX color close to Brown. According to Colors Encyclopedia, it converts to RGB 167, 43, 27, HSL 7, 72%, 38%, has luminance 0.1002, and belongs to the vibrant group.

red warm vibrant

#A72B1B Sample readable text

HEX #A72B1B

RGB rgb(167, 43, 27)

HSL hsl(7 72% 38%)

CMYK cmyk(0, 74, 84, 35)

Luminance 0.1002

Contrast Black 3:1White 6.99:1

CSS

--color-a72b1b: #A72B1B;
.background-a72b1b { background-color: #A72B1B; }
.text-a72b1b { color: #A72B1B; }

Luminance0.1002

Black text3:1AA Fail

White text6.99:1AA 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":"#A72B1B","rgb":[167,43,27],"hsl":[7,72,38],"cmyk":[0,74,84,35],"luminance":0.1002,"contrast":{"black":3,"white":6.99}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.99,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#58170E","hex":"#58170E","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.54,"contrastWhite":13.6,"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":"#913C30","hex":"#913C30","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.89,"contrastWhite":7.26,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Pompeian Red","hex":"#A42A04","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.91,"contrastWhite":7.21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"#A71B51","hex":"#A71B51","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.92,"contrastWhite":7.2,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]}]

AI context

{"semanticGroups":["warm red","vibrant","vibrant red","Brown adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/a72b1b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/brown.json","https://www.colorsencyclopedia.com/api/colors/firebrick.json","https://www.colorsencyclopedia.com/api/colors/pompeian-red.json"]}

Harmonies

{"complementary":"#1B96A7","analogous":["#A71B51","#A7711B"],"triadic":["#1BA72B","#2B1BA7"],"tetradic":["#51A71B","#1B96A7","#711BA7"],"splitComplementary":["#1BA771","#1B51A7"],"monochromatic":["#E0513E","#A72B1B","#58170E"]}

Variants

{"light":"#E0513E","dark":"#58170E","saturated":"#BC1B06","desaturated":"#913C30","pastel":"#D6776B","neon":"#EB1B00"}

Nearest named colors

[{"slug":"brown","name":"Brown","hex":"#A52A2A","distance":15.165750888103101},{"slug":"firebrick","name":"Firebrick","hex":"#B22222","distance":15.84297951775486},{"slug":"pompeian-red","name":"Pompeian Red","hex":"#A42A04","distance":23.2163735324878},{"slug":"ruby-red","name":"Ruby Red","hex":"#9B111E","distance":28.792360097775937},{"slug":"tool-red","name":"Tool Red","hex":"#B11226","distance":29.086079144497972}]

HEX meaning and use

About #A72B1B

#A72B1B is classified as a warm red value with vibrant visual character. #A72B1B is visually closest to Brown, a named red color with HEX #A52A2A.

The RGB channels are 167, 43, and 27, with red carrying the strongest channel weight. In HSL, the hue is 7deg with 72% saturation and 38% lightness, so this page treats it as a high-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-energy accents. Its luminance is 0.1002, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 15.17, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3:1AA Fail

White text6.99:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #A72B1B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003:1 · Fail

White text#FFFFFF6.99:1 · AA

Accessible Alternatives

#58170E#FFFFFF text · best 13.6:1#58170E

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

#913C30#FFFFFF text · best 7.26:1#913C30

Pompeian Red#FFFFFF text · best 7.21:1#A42A04

#A71B51#FFFFFF text · best 7.2:1#A71B51

Generated Palette

#A72B1B#A72B1B

#1B96A7#1B96A7

#A71B51#A71B51

#A7711B#A7711B

#E0513E#E0513E

#58170E#58170E

Color Harmonies

#1B96A7#1B96A7

#A71B51#A71B51

#A7711B#A7711B

#1BA72B#1BA72B

#2B1BA7#2B1BA7

Variants

#E0513E#E0513E

#58170E#58170E

#BC1B06#BC1B06

#913C30#913C30

#D6776B#D6776B

#EB1B00#EB1B00

Nearest Named Colors

Brown#A52A2A

Firebrick#B22222

Pompeian Red#A42A04

Ruby Red#9B111E

Tool Red#B11226

#A72B1B

CSS

Machine-Readable HEX Data (JSON)

About #A72B1B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides