Colors Encyclopedia

HEX atlas value

#521D0A

#521D0A is a warm orange HEX color close to Oxblood. According to Colors Encyclopedia, it converts to RGB 82, 29, 10, HSL 16, 78%, 18%, has luminance 0.0269, and belongs to the dark group.

orangewarmdark
#521D0A Sample readable text
HEX #521D0A
RGB rgb(82, 29, 10)
HSL hsl(16 78% 18%)
CMYK cmyk(0, 65, 88, 68)
Luminance 0.0269
Contrast Black 1.54:1White 13.65:1

CSS

--color-521d0a: #521D0A;
.background-521d0a { background-color: #521D0A; }
.text-521d0a { color: #521D0A; }

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
Luminance0.0269
Black text1.54:1AA Fail
White text13.65:1AA 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":"#521D0A","rgb":[82,29,10],"hsl":[16,78,18],"cmyk":[0,65,88,68],"luminance":0.0269,"contrast":{"black":1.54,"white":13.65}}
WCAG
{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":1.54,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":13.65,"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":"Oxblood","hex":"#4A0000","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.29,"contrastWhite":16.25,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#520A1B","hex":"#520A1B","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.42,"contrastWhite":14.81,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#482214","hex":"#482214","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":1.51,"contrastWhite":13.87,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#5C1800","hex":"#5C1800","family":"orange","bestTextColor":"#FFFFFF","contrastBlack":1.59,"contrastWhite":13.24,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]
AI context
{"semanticGroups":["warm orange","dark","dark orange","Oxblood adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","dark theme accents"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/521d0a.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/oxblood.json","https://www.colorsencyclopedia.com/api/colors/espresso.json","https://www.colorsencyclopedia.com/api/colors/merlot.json"]}
Harmonies
{"complementary":"#0A3F52","analogous":["#520A1B","#52410A"],"triadic":["#0A521D","#1D0A52"],"tetradic":["#1B520A","#0A3F52","#410A52"],"splitComplementary":["#0A5241","#0A1B52"],"monochromatic":["#A33A14","#521D0A","#000000"]}
Variants
{"light":"#A33A14","dark":"#000000","saturated":"#5C1800","desaturated":"#482214","pastel":"#B34D29","neon":"#852300"}
Nearest named colors
[{"slug":"oxblood","name":"Oxblood","hex":"#4A0000","distance":31.701734968294716},{"slug":"espresso","name":"Espresso","hex":"#4B3621","distance":34.68429039204925},{"slug":"merlot","name":"Merlot","hex":"#541E2E","distance":36.069377593742864},{"slug":"garnet-red","name":"Garnet Red","hex":"#6E1F26","distance":39.64845520319802},{"slug":"pine-bark","name":"Pine Bark","hex":"#4A3728","distance":40.496913462633174}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #521D0A

#521D0A is classified as a warm orange value with dark visual character. #521D0A is visually closest to Oxblood, a named red color with HEX #4A0000.

The RGB channels are 82, 29, and 10, with red carrying the strongest channel weight. In HSL, the hue is 16deg with 78% saturation and 18% lightness, so this page treats it as a high-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 0.0269, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 31.70, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text1.54:1AA Fail
White text13.65:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #521D0A needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000001.54:1 · Fail
White text#FFFFFF13.65:1 · AAA

Accessible Alternatives

Black#FFFFFF text · best 21:1#000000
Oxblood#FFFFFF text · best 16.25:1#4A0000
#520A1B#FFFFFF text · best 14.81:1#520A1B
#482214#FFFFFF text · best 13.87:1#482214
#5C1800#FFFFFF text · best 13.24:1#5C1800

Generated Palette

#521D0A#521D0A
#0A3F52#0A3F52
#520A1B#520A1B
#52410A#52410A
#A33A14#A33A14
Black#000000

Color Harmonies

#0A3F52#0A3F52
#520A1B#520A1B
#52410A#52410A
#0A521D#0A521D
#1D0A52#1D0A52

Variants

#A33A14#A33A14
Black#000000
#5C1800#5C1800
#482214#482214
#B34D29#B34D29
#852300#852300

Nearest Named Colors

Oxblood#4A0000
Espresso#4B3621
Merlot#541E2E
Garnet Red#6E1F26
Pine Bark#4A3728

Related HEX Guides

Oxblood colorOpen the nearest named color reference for #4A0000.Espresso colorOpen the nearest named color reference for #4B3621.Merlot colorOpen the nearest named color reference for #541E2E.Orange color familyBrowse named orange 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.#521D0A APIOpen the machine-readable JSON record for this HEX value.