Colors Encyclopedia

HEX atlas value

#8A8378

#8A8378 is a neutral gray HEX color close to Warm Gray. According to Colors Encyclopedia, it converts to RGB 138, 131, 120, HSL 37, 7%, 51%, has luminance 0.2299, and belongs to the muted group.

grayneutralmuted
#8A8378 Sample readable text
HEX #8A8378
RGB rgb(138, 131, 120)
HSL hsl(37 7% 51%)
CMYK cmyk(0, 5, 13, 46)
Luminance 0.2299
Contrast Black 5.6:1White 3.75:1

CSS

--color-8a8378: #8A8378;
.background-8a8378 { background-color: #8A8378; }
.text-8a8378 { color: #8A8378; }

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
Luminance0.2299
Black text5.6:1AA Pass
White text3.75:1AA Fail
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":"#8A8378","rgb":[138,131,120],"hsl":[37,7,51],"cmyk":[0,5,13,46],"luminance":0.2299,"contrast":{"black":5.6,"white":3.75}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":5.6,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.75,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#B5B1AA","hex":"#B5B1AA","family":"gray","bestTextColor":"#000000","contrastBlack":9.83,"contrastWhite":2.14,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#5A564E","hex":"#5A564E","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":2.88,"contrastWhite":7.3,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"#A68B5E","hex":"#A68B5E","family":"orange","bestTextColor":"#000000","contrastBlack":6.48,"contrastWhite":3.24,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"#898B79","hex":"#898B79","family":"gray","bestTextColor":"#000000","contrastBlack":6.03,"contrastWhite":3.48,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]},{"name":"Titanium","hex":"#878681","family":"gray","bestTextColor":"#000000","contrastBlack":5.76,"contrastWhite":3.65,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]
AI context
{"semanticGroups":["neutral gray","muted","muted gray","Warm Gray adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","muted interface themes","neutral UI systems"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/8a8378.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/warm-gray.json","https://www.colorsencyclopedia.com/api/colors/stone.json","https://www.colorsencyclopedia.com/api/colors/titanium.json"]}
Harmonies
{"complementary":"#79808B","analogous":["#8B7B79","#898B79"],"triadic":["#798B84","#84798B"],"tetradic":["#798B7B","#79808B","#8B7989"],"splitComplementary":["#79898B","#7B798B"],"monochromatic":["#B5B1AA","#8A8378","#5A564E"]}
Variants
{"light":"#B5B1AA","dark":"#5A564E","saturated":"#A68B5E","desaturated":"#828282","pastel":"#C2C2C2","neon":"#FFAF2E"}
Nearest named colors
[{"slug":"warm-gray","name":"Warm Gray","hex":"#8A8378","distance":0},{"slug":"stone","name":"Stone","hex":"#8A817C","distance":4.47213595499958},{"slug":"titanium","name":"Titanium","hex":"#878681","distance":9.9498743710662},{"slug":"gray","name":"Gray","hex":"#808080","distance":13.152946437965905},{"slug":"grey","name":"Grey","hex":"#808080","distance":13.152946437965905}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #8A8378

#8A8378 is classified as a neutral gray value with muted visual character. #8A8378 is visually closest to Warm Gray, a named gray color with HEX #8A8378.

The RGB channels are 138, 131, and 120, with red carrying the strongest channel weight. In HSL, the hue is 37deg with 7% saturation and 51% lightness, so this page treats it as a low-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 muted interface themes. Its luminance is 0.2299, black 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 text5.6:1AA Pass
White text3.75:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #8A8378 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.6:1 · AA
White text#FFFFFF3.75:1 · Fail

Accessible Alternatives

#B5B1AA#000000 text · best 9.83:1#B5B1AA
#5A564E#FFFFFF text · best 7.3:1#5A564E
#A68B5E#000000 text · best 6.48:1#A68B5E
#898B79#000000 text · best 6.03:1#898B79
Titanium#000000 text · best 5.76:1#878681

Generated Palette

Warm Gray#8A8378
#79808B#79808B
#8B7B79#8B7B79
#898B79#898B79
#B5B1AA#B5B1AA
#5A564E#5A564E

Color Harmonies

#79808B#79808B
#8B7B79#8B7B79
#898B79#898B79
#798B84#798B84
#84798B#84798B

Variants

#B5B1AA#B5B1AA
#5A564E#5A564E
#A68B5E#A68B5E
#828282#828282
#C2C2C2#C2C2C2
#FFAF2E#FFAF2E

Nearest Named Colors

Warm Gray#8A8378
Stone#8A817C
Titanium#878681
Gray#808080
Grey#808080

Related HEX Guides

Warm Gray colorOpen the nearest named color reference for #8A8378.Stone colorOpen the nearest named color reference for #8A817C.Titanium colorOpen the nearest named color reference for #878681.Gray color familyBrowse named gray colors related to this HEX value.Neutral colorsExplore colors with similar temperature behavior.Muted colorsFind colors in the muted 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.#8A8378 APIOpen the machine-readable JSON record for this HEX value.