Colors Encyclopedia

HEX atlas value

#353839

#353839 is a neutral gray HEX color close to Onyx. According to Colors Encyclopedia, it converts to RGB 53, 56, 57, HSL 195, 4%, 22%, has luminance 0.0388, and belongs to the dark group.

grayneutraldark
#353839 Sample readable text
HEX #353839
RGB rgb(53, 56, 57)
HSL hsl(195 4% 22%)
CMYK cmyk(7, 2, 0, 78)
Luminance 0.0388
Contrast Black 1.78:1White 11.82:1

CSS

--color-353839: #353839;
.background-353839 { background-color: #353839; }
.text-353839 { color: #353839; }

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
Luminance0.0388
Black text1.78:1AA Fail
White text11.82:1AA 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":"#353839","rgb":[53,56,57],"hsl":[195,4,22],"cmyk":[7,2,0,78],"luminance":0.0388,"contrast":{"black":1.78,"white":11.82}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":1.78,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":11.82,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"#0A0A0B","hex":"#0A0A0B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.06,"contrastWhite":19.77,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Peat","hex":"#3B2F2F","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.63,"contrastWhite":12.85,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Gunmetal","hex":"#2A3439","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.65,"contrastWhite":12.74,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Jet","hex":"#343434","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.69,"contrastWhite":12.46,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#36373A","hex":"#36373A","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.76,"contrastWhite":11.9,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["neutral gray","dark","dark gray","Onyx adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","dark theme accents","neutral UI systems"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/353839.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/onyx.json","https://www.colorsencyclopedia.com/api/colors/graphite.json","https://www.colorsencyclopedia.com/api/colors/jet.json"]}
Harmonies
{"complementary":"#3A3736","analogous":["#363A39","#36373A"],"triadic":["#3A3639","#393A36"],"tetradic":["#39363A","#3A3736","#373A36"],"splitComplementary":["#3A3637","#3A3936"],"monochromatic":["#62686A","#353839","#0A0A0B"]}
Variants
{"light":"#62686A","dark":"#0A0A0B","saturated":"#2A3F47","desaturated":"#383838","pastel":"#787878","neon":"#007399"}
Nearest named colors
[{"slug":"onyx","name":"Onyx","hex":"#353839","distance":0},{"slug":"graphite","name":"Graphite","hex":"#383838","distance":3.1622776601683795},{"slug":"jet","name":"Jet","hex":"#343434","distance":6.48074069840786},{"slug":"gunmetal","name":"Gunmetal","hex":"#2A3439","distance":11.704699910719626},{"slug":"peat","name":"Peat","hex":"#3B2F2F","distance":14.730919862656235}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #353839

#353839 is classified as a neutral gray value with dark visual character. #353839 is visually closest to Onyx, a named gray color with HEX #353839.

The RGB channels are 53, 56, and 57, with blue carrying the strongest channel weight. In HSL, the hue is 195deg with 4% saturation and 22% 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 dark theme accents. Its luminance is 0.0388, white 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 text1.78:1AA Fail
White text11.82:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #353839 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.78:1 · Fail
White text#FFFFFF11.82:1 · AAA

Accessible Alternatives

#0A0A0B#FFFFFF text · best 19.77:1#0A0A0B
Peat#FFFFFF text · best 12.85:1#3B2F2F
Gunmetal#FFFFFF text · best 12.74:1#2A3439
Jet#FFFFFF text · best 12.46:1#343434
#36373A#FFFFFF text · best 11.9:1#36373A

Generated Palette

Onyx#353839
#3A3736#3A3736
#363A39#363A39
#36373A#36373A
#62686A#62686A
#0A0A0B#0A0A0B

Color Harmonies

#3A3736#3A3736
#363A39#363A39
#36373A#36373A
#3A3639#3A3639
#393A36#393A36

Variants

#62686A#62686A
#0A0A0B#0A0A0B
#2A3F47#2A3F47
Graphite#383838
#787878#787878
#007399#007399

Nearest Named Colors

Onyx#353839
Graphite#383838
Jet#343434
Gunmetal#2A3439
Peat#3B2F2F

Related HEX Guides

Onyx colorOpen the nearest named color reference for #353839.Graphite colorOpen the nearest named color reference for #383838.Jet colorOpen the nearest named color reference for #343434.Gray color familyBrowse named gray colors related to this HEX value.Neutral colorsExplore colors with similar temperature behavior.Dark colorsFind colors in the dark 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.#353839 APIOpen the machine-readable JSON record for this HEX value.