Colors Encyclopedia

HEX atlas value

#33390E

#33390E is a warm yellow HEX color close to Rubber. According to Colors Encyclopedia, it converts to RGB 51, 57, 14, HSL 68, 61%, 14%, has luminance 0.0366, and belongs to the dark and earth tone groups.

yellowwarmdarkearth-tone
#33390E Sample readable text
HEX #33390E
RGB rgb(51, 57, 14)
HSL hsl(68 61% 14%)
CMYK cmyk(11, 0, 75, 78)
Luminance 0.0366
Contrast Black 1.73:1White 12.12:1

CSS

--color-33390e: #33390E;
.background-33390e { background-color: #33390E; }
.text-33390e { color: #33390E; }

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
Luminance0.0366
Black text1.73:1AA Fail
White text12.12:1AA 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":"#33390E","rgb":[51,57,14],"hsl":[68,61,14],"cmyk":[11,0,75,78],"luminance":0.0366,"contrast":{"black":1.73,"white":12.12}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":1.73,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":12.12,"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":"#140E39","hex":"#140E39","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":1.15,"contrastWhite":18.23,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Rubber","hex":"#2A2725","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.83,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Slate Black","hex":"#26282A","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.79,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Asphalt","hex":"#2B2B2B","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.48,"contrastWhite":14.15,"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/33390e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/rubber.json","https://www.colorsencyclopedia.com/api/colors/espresso.json","https://www.colorsencyclopedia.com/api/colors/asphalt.json"]}
Harmonies
{"complementary":"#140E39","analogous":["#392A0E","#1E390E"],"triadic":["#0E3439","#390E34"],"tetradic":["#0E392A","#140E39","#390E1E"],"splitComplementary":["#0E1E39","#2A0E39"],"monochromatic":["#768320","#33390E","#000000"]}
Variants
{"light":"#768320","dark":"#000000","saturated":"#394106","desaturated":"#2E3216","pastel":"#859136","neon":"#617000"}
Nearest named colors
[{"slug":"rubber","name":"Rubber","hex":"#2A2725","distance":30.56141357987225},{"slug":"espresso","name":"Espresso","hex":"#4B3621","distance":30.757112998459398},{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":33.18132004607411},{"slug":"pine-bark","name":"Pine Bark","hex":"#4A3728","distance":34.77067730142742},{"slug":"slate-black","name":"Slate Black","hex":"#26282A","distance":35.24202037341219}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #33390E

#33390E is classified as a warm yellow value with dark and earth tone visual character. #33390E is visually closest to Rubber, a named gray color with HEX #2A2725.

The RGB channels are 51, 57, and 14, with green carrying the strongest channel weight. In HSL, the hue is 68deg with 61% saturation and 14% lightness, so this page treats it as a moderate-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 0.0366, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 30.56, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.73:1AA Fail
White text12.12:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #33390E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.73:1 · Fail
White text#FFFFFF12.12:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000
#140E39#FFFFFF text · best 18.23:1#140E39
Rubber#FFFFFF text · best 14.83:1#2A2725
Slate Black#FFFFFF text · best 14.79:1#26282A
Asphalt#FFFFFF text · best 14.15:1#2B2B2B

Generated Palette

#33390E#33390E
#140E39#140E39
#392A0E#392A0E
#1E390E#1E390E
#768320#768320
Black#000000

Color Harmonies

#140E39#140E39
#392A0E#392A0E
#1E390E#1E390E
#0E3439#0E3439
#390E34#390E34

Variants

#768320#768320
Black#000000
#394106#394106
#2E3216#2E3216
#859136#859136
#617000#617000

Nearest Named Colors

Rubber#2A2725
Espresso#4B3621
Asphalt#2B2B2B
Pine Bark#4A3728
Slate Black#26282A

Related HEX Guides

Rubber colorOpen the nearest named color reference for #2A2725.Espresso colorOpen the nearest named color reference for #4B3621.Asphalt colorOpen the nearest named color reference for #2B2B2B.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.#33390E APIOpen the machine-readable JSON record for this HEX value.