Colors Encyclopedia

HEX atlas value

#AB2B2B

#AB2B2B is a warm red HEX color close to Brown. According to Colors Encyclopedia, it converts to RGB 171, 43, 43, HSL 0, 60%, 42%, has luminance 0.1056, and belongs to the balanced group.

redwarmbalanced
#AB2B2B Sample readable text
HEX #AB2B2B
RGB rgb(171, 43, 43)
HSL hsl(0 60% 42%)
CMYK cmyk(0, 75, 75, 33)
Luminance 0.1056
Contrast Black 3.11:1White 6.75:1

CSS

--color-ab2b2b: #AB2B2B;
.background-ab2b2b { background-color: #AB2B2B; }
.text-ab2b2b { color: #AB2B2B; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.1056
Black text3.11:1AA Fail
White text6.75:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#AB2B2B","rgb":[171,43,43],"hsl":[0,60,42],"cmyk":[0,75,75,33],"luminance":0.1056,"contrast":{"black":3.11,"white":6.75}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":3.11,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.75,"wcagAA":true,"wcagAAA":false}]
Accessible alternatives
[{"name":"#621818","hex":"#621818","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.66,"contrastWhite":12.62,"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"]},{"name":"#2BABAB","hex":"#2BABAB","family":"cyan","bestTextColor":"#000000","contrastBlack":7.52,"contrastWhite":2.79,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Brown","hex":"#A52A2A","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.96,"contrastWhite":7.09,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]}]
AI context
{"semanticGroups":["warm red","balanced","balanced red","Brown adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/ab2b2b.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/tool-red.json"]}
Harmonies
{"complementary":"#2BABAB","analogous":["#AB2B6B","#AB6B2B"],"triadic":["#2BAB2B","#2B2BAB"],"tetradic":["#6BAB2B","#2BABAB","#6B2BAB"],"splitComplementary":["#2BAB6B","#2B6BAB"],"monochromatic":["#D65C5C","#AB2B2B","#621818"]}
Variants
{"light":"#D65C5C","dark":"#621818","saturated":"#C31313","desaturated":"#944242","pastel":"#D18585","neon":"#FF0000"}
Nearest named colors
[{"slug":"brown","name":"Brown","hex":"#A52A2A","distance":6.164414002968976},{"slug":"firebrick","name":"Firebrick","hex":"#B22222","distance":14.52583904633395},{"slug":"tool-red","name":"Tool Red","hex":"#B11226","distance":26.19160170741759},{"slug":"ruby-red","name":"Ruby Red","hex":"#9B111E","distance":33.18132004607411},{"slug":"brick-red","name":"Brick Red","hex":"#8A3324","distance":34.66987164671943}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #AB2B2B

#AB2B2B is classified as a warm red value with balanced visual character. #AB2B2B is visually closest to Brown, a named red color with HEX #A52A2A.

The RGB channels are 171, 43, and 43, with red carrying the strongest channel weight. In HSL, the hue is 0deg with 60% saturation and 42% 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 0.1056, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 6.16, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.11:1AA Fail
White text6.75:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #AB2B2B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.11:1 · Fail
White text#FFFFFF6.75:1 · AA

Accessible Alternatives

#621818#FFFFFF text · best 12.62:1#621818
Ruby Red#FFFFFF text · best 8.43:1#9B111E
Burnt Umber#FFFFFF text · best 8.14:1#8A3324
#2BABAB#000000 text · best 7.52:1#2BABAB
Brown#FFFFFF text · best 7.09:1#A52A2A

Generated Palette

#AB2B2B#AB2B2B
#2BABAB#2BABAB
#AB2B6B#AB2B6B
#AB6B2B#AB6B2B
#D65C5C#D65C5C
#621818#621818

Color Harmonies

#2BABAB#2BABAB
#AB2B6B#AB2B6B
#AB6B2B#AB6B2B
#2BAB2B#2BAB2B
#2B2BAB#2B2BAB

Variants

#D65C5C#D65C5C
#621818#621818
#C31313#C31313
#944242#944242
#D18585#D18585
Red#FF0000

Nearest Named Colors

Brown#A52A2A
Firebrick#B22222
Tool Red#B11226
Ruby Red#9B111E
Brick Red#8A3324

Related HEX Guides

Brown colorOpen the nearest named color reference for #A52A2A.Firebrick colorOpen the nearest named color reference for #B22222.Tool Red colorOpen the nearest named color reference for #B11226.Red color familyBrowse named red colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Balanced colorsFind colors in the balanced group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#AB2B2B APIOpen the machine-readable JSON record for this HEX value.