Colors Encyclopedia

HEX atlas value

#66291E

#66291E is a warm red HEX color close to Garnet Red. According to Colors Encyclopedia, it converts to RGB 102, 41, 30, HSL 9, 55%, 26%, has luminance 0.045, and belongs to the balanced group.

redwarmbalanced
#66291E Sample readable text
HEX #66291E
RGB rgb(102, 41, 30)
HSL hsl(9 55% 26%)
CMYK cmyk(0, 60, 71, 60)
Luminance 0.045
Contrast Black 1.9:1White 11.05:1

CSS

--color-66291e: #66291E;
.background-66291e { background-color: #66291E; }
.text-66291e { color: #66291E; }

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
Luminance0.045
Black text1.9:1AA Fail
White text11.05:1AA 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":"#66291E","rgb":[102,41,30],"hsl":[9,55,26],"cmyk":[0,60,71,60],"luminance":0.045,"contrast":{"black":1.9,"white":11.05}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":1.9,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":11.05,"wcagAA":true,"wcagAAA":true}]
Accessible alternatives
[{"name":"#200D09","hex":"#200D09","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.12,"contrastWhite":18.72,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Merlot","hex":"#541E2E","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.6,"contrastWhite":13.11,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#671E37","hex":"#671E37","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.82,"contrastWhite":11.55,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Garnet Red","hex":"#6E1F26","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.89,"contrastWhite":11.13,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#58332C","hex":"#58332C","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.92,"contrastWhite":10.91,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["warm red","balanced","balanced red","Garnet Red adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/66291e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/garnet-red.json","https://www.colorsencyclopedia.com/api/colors/bark.json","https://www.colorsencyclopedia.com/api/colors/merlot.json"]}
Harmonies
{"complementary":"#1E5C67","analogous":["#671E37","#674D1E"],"triadic":["#1E6729","#291E67"],"tetradic":["#37671E","#1E5C67","#4D1E67"],"splitComplementary":["#1E674D","#1E3767"],"monochromatic":["#AE4532","#66291E","#200D09"]}
Variants
{"light":"#AE4532","dark":"#200D09","saturated":"#751F0F","desaturated":"#58332C","pastel":"#B45F50","neon":"#AD1A00"}
Nearest named colors
[{"slug":"garnet-red","name":"Garnet Red","hex":"#6E1F26","distance":15.0996688705415},{"slug":"bark","name":"Bark","hex":"#5B3A29","distance":23.043437243605826},{"slug":"merlot","name":"Merlot","hex":"#541E2E","distance":26.476404589747453},{"slug":"wine-red","name":"Wine Red","hex":"#722F37","distance":28.372521918222215},{"slug":"sepia","name":"Sepia","hex":"#704214","distance":28.722813232690143}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #66291E

#66291E is classified as a warm red value with balanced visual character. #66291E is visually closest to Garnet Red, a named red color with HEX #6E1F26.

The RGB channels are 102, 41, and 30, with red carrying the strongest channel weight. In HSL, the hue is 9deg with 55% saturation and 26% 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 high-attention visual states. Its luminance is 0.045, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 15.10, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.9:1AA Fail
White text11.05:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #66291E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.9:1 · Fail
White text#FFFFFF11.05:1 · AAA

Accessible Alternatives

#200D09#FFFFFF text · best 18.72:1#200D09
Merlot#FFFFFF text · best 13.11:1#541E2E
#671E37#FFFFFF text · best 11.55:1#671E37
Garnet Red#FFFFFF text · best 11.13:1#6E1F26
#58332C#FFFFFF text · best 10.91:1#58332C

Generated Palette

#66291E#66291E
#1E5C67#1E5C67
#671E37#671E37
#674D1E#674D1E
#AE4532#AE4532
#200D09#200D09

Color Harmonies

#1E5C67#1E5C67
#671E37#671E37
#674D1E#674D1E
#1E6729#1E6729
#291E67#291E67

Variants

#AE4532#AE4532
#200D09#200D09
#751F0F#751F0F
#58332C#58332C
#B45F50#B45F50
#AD1A00#AD1A00

Nearest Named Colors

Garnet Red#6E1F26
Bark#5B3A29
Merlot#541E2E
Wine Red#722F37
Sepia#704214

Related HEX Guides

Garnet Red colorOpen the nearest named color reference for #6E1F26.Bark colorOpen the nearest named color reference for #5B3A29.Merlot colorOpen the nearest named color reference for #541E2E.Red color familyBrowse named red colors related to this HEX value.Warm colorsExplore colors with similar temperature behavior.Balanced colorsFind colors in the balanced 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.#66291E APIOpen the machine-readable JSON record for this HEX value.