Colors Encyclopedia

HEX atlas value

#3E1D1D

#3E1D1D is a warm red HEX color close to Rubber. According to Colors Encyclopedia, it converts to RGB 62, 29, 29, HSL 0, 36%, 18%, has luminance 0.0199, and belongs to the dark group.

redwarmdark
#3E1D1D Sample readable text
HEX #3E1D1D
RGB rgb(62, 29, 29)
HSL hsl(0 36% 18%)
CMYK cmyk(0, 53, 53, 76)
Luminance 0.0199
Contrast Black 1.4:1White 15.02:1

CSS

--color-3e1d1d: #3E1D1D;
.background-3e1d1d { background-color: #3E1D1D; }
.text-3e1d1d { color: #3E1D1D; }

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
Luminance0.0199
Black text1.4:1AA Fail
White text15.02:1AA 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":"#3E1D1D","rgb":[62,29,29],"hsl":[0,36,18],"cmyk":[0,53,53,76],"luminance":0.0199,"contrast":{"black":1.4,"white":15.02}}
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":15.02,"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":"Raisin","hex":"#242124","family":"gray","bestTextColor":"#FFFFFF","contrastBlack":1.32,"contrastWhite":15.93,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#491313","hex":"#491313","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.39,"contrastWhite":15.15,"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":"#3E1D2E","hex":"#3E1D2E","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.79,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["warm red","dark","dark red","Rubber adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","dark theme accents","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/3e1d1d.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/rubber.json","https://www.colorsencyclopedia.com/api/colors/peat.json","https://www.colorsencyclopedia.com/api/colors/raisin.json"]}
Harmonies
{"complementary":"#1D3E3E","analogous":["#3E1D2E","#3E2E1D"],"triadic":["#1D3E1D","#1D1D3E"],"tetradic":["#2E3E1D","#1D3E3E","#2E1D3E"],"splitComplementary":["#1D3E2E","#1D2E3E"],"monochromatic":["#7D3B3B","#3E1D1D","#000000"]}
Variants
{"light":"#7D3B3B","dark":"#000000","saturated":"#491313","desaturated":"#342727","pastel":"#855757","neon":"#850000"}
Nearest named colors
[{"slug":"rubber","name":"Rubber","hex":"#2A2725","distance":23.748684174075834},{"slug":"peat","name":"Peat","hex":"#3B2F2F","distance":25.632011235952593},{"slug":"raisin","name":"Raisin","hex":"#242124","distance":27.2213151776324},{"slug":"asphalt","name":"Asphalt","hex":"#2B2B2B","distance":27.440845468024488},{"slug":"merlot","name":"Merlot","hex":"#541E2E","distance":27.820855486487112}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #3E1D1D

#3E1D1D is classified as a warm red value with dark visual character. #3E1D1D is visually closest to Rubber, a named gray color with HEX #2A2725.

The RGB channels are 62, 29, and 29, with red carrying the strongest channel weight. In HSL, the hue is 0deg with 36% saturation and 18% 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 dark theme accents. Its luminance is 0.0199, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 23.75, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.4:1AA Fail
White text15.02:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #3E1D1D needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.4:1 · Fail
White text#FFFFFF15.02:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000
Raisin#FFFFFF text · best 15.93:1#242124
#491313#FFFFFF text · best 15.15:1#491313
Rubber#FFFFFF text · best 14.83:1#2A2725
#3E1D2E#FFFFFF text · best 14.79:1#3E1D2E

Generated Palette

#3E1D1D#3E1D1D
#1D3E3E#1D3E3E
#3E1D2E#3E1D2E
#3E2E1D#3E2E1D
#7D3B3B#7D3B3B
Black#000000

Color Harmonies

#1D3E3E#1D3E3E
#3E1D2E#3E1D2E
#3E2E1D#3E2E1D
#1D3E1D#1D3E1D
#1D1D3E#1D1D3E

Variants

#7D3B3B#7D3B3B
Black#000000
#491313#491313
#342727#342727
#855757#855757
#850000#850000

Nearest Named Colors

Rubber#2A2725
Peat#3B2F2F
Raisin#242124
Asphalt#2B2B2B
Merlot#541E2E

Related HEX Guides

Rubber colorOpen the nearest named color reference for #2A2725.Peat colorOpen the nearest named color reference for #3B2F2F.Raisin colorOpen the nearest named color reference for #242124.Red color familyBrowse named red colors related to this HEX value.Warm 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.#3E1D1D APIOpen the machine-readable JSON record for this HEX value.