Colors Encyclopedia

HEX atlas value

#28271F

#28271F is a warm yellow HEX color close to Rubber. According to Colors Encyclopedia, it converts to RGB 40, 39, 31, HSL 53, 13%, 14%, has luminance 0.02, and belongs to the dark and earth tone groups.

yellowwarmdarkearth-tone
#28271F Sample readable text
HEX #28271F
RGB rgb(40, 39, 31)
HSL hsl(53 13% 14%)
CMYK cmyk(0, 2, 22, 84)
Luminance 0.02
Contrast Black 1.4:1White 15:1

CSS

--color-28271f: #28271F;
.background-28271f { background-color: #28271F; }
.text-28271f { color: #28271F; }

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
Luminance0.02
Black text1.4:1AA Fail
White text15:1AA 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":"#28271F","rgb":[40,39,31],"hsl":[53,13,14],"cmyk":[0,2,22,84],"luminance":0.02,"contrast":{"black":1.4,"white":15}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":1.4,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":15,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"Black","hex":"#000000","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1,"contrastWhite":21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Carbon Fiber","hex":"#1C1C1C","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.23,"contrastWhite":17.05,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#1F2028","hex":"#1F2028","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.3,"contrastWhite":16.2,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Raisin","hex":"#242124","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.32,"contrastWhite":15.93,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#28231F","hex":"#28231F","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":1.35,"contrastWhite":15.56,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["warm yellow","dark","earth tone","dark yellow","earth tone yellow","Rubber adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","dark theme accents","highlight and warning systems"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/28271f.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/rubber.json","https://www.colorsencyclopedia.com/api/colors/raisin.json","https://www.colorsencyclopedia.com/api/colors/slate-black.json"]}
Harmonies
{"complementary":"#1F2028","analogous":["#28231F","#25281F"],"triadic":["#1F2827","#271F28"],"tetradic":["#1F2823","#1F2028","#281F25"],"splitComplementary":["#1F2528","#231F28"],"monochromatic":["#5C5A47","#28271F","#000000"]}
Variants
{"light":"#5C5A47","dark":"#000000","saturated":"#302D17","desaturated":"#242424","pastel":"#636363","neon":"#706300"}
Nearest named colors
[{"slug":"rubber","name":"Rubber","hex":"#2A2725","distance":6.324555320336759},{"slug":"raisin","name":"Raisin","hex":"#242124","distance":8.774964387392123},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":11.224972160321824},{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":13},{"slug":"carbon-fiber","name":"Carbon Fiber","hex":"#1C1C1C","distance":16.55294535724685}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #28271F

#28271F is classified as a warm yellow value with dark and earth tone visual character. #28271F is visually closest to Rubber, a named gray color with HEX #2A2725.

The RGB channels are 40, 39, and 31, with red carrying the strongest channel weight. In HSL, the hue is 53deg with 13% saturation and 14% lightness, so this page treats it as a low-saturation, dark 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 natural palettes. Its luminance is 0.02, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 6.32, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.4:1AA Fail
White text15:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #28271F needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.4:1 · Fail
White text#FFFFFF15:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000
Carbon Fiber#FFFFFF text · best 17.05:1#1C1C1C
#1F2028#FFFFFF text · best 16.2:1#1F2028
Raisin#FFFFFF text · best 15.93:1#242124
#28231F#FFFFFF text · best 15.56:1#28231F

Generated Palette

#28271F#28271F
#1F2028#1F2028
#28231F#28231F
#25281F#25281F
#5C5A47#5C5A47
Black#000000

Color Harmonies

#1F2028#1F2028
#28231F#28231F
#25281F#25281F
#1F2827#1F2827
#271F28#271F28

Variants

#5C5A47#5C5A47
Black#000000
#302D17#302D17
#242424#242424
#636363#636363
#706300#706300

Nearest Named Colors

Rubber#2A2725
Raisin#242124
Slate Black#26282A
Asphalt#2B2B2B
Carbon Fiber#1C1C1C

Related HEX Guides

Rubber colorOpen the nearest named color reference for #2A2725.Raisin colorOpen the nearest named color reference for #242124.Slate Black colorOpen the nearest named color reference for #26282A.Yellow color familyBrowse named yellow colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Dark colorsFind colors in the dark group.Earth Tone colorsFind colors in the earth tone 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.#28271F APIOpen the machine-readable JSON record for this HEX value.