HEX atlas value

#A0100E

#A0100E is a warm red HEX color close to Cranberry. According to Colors Encyclopedia, it converts to RGB 160, 16, 14, HSL 1, 84%, 34%, has luminance 0.0788, and belongs to the balanced group.

red warm balanced

#A0100E Sample readable text

HEX #A0100E

RGB rgb(160, 16, 14)

HSL hsl(1 84% 34%)

CMYK cmyk(0, 90, 91, 37)

Luminance 0.0788

Contrast Black 2.58:1White 8.15:1

CSS

--color-a0100e: #A0100E;
.background-a0100e { background-color: #A0100E; }
.text-a0100e { color: #A0100E; }

Luminance0.0788

Black text2.58:1AA Fail

White text8.15:1AA 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

Structured sections

Color systems

{"hex":"#A0100E","rgb":[160,16,14],"hsl":[1,84,34],"cmyk":[0,90,91,37],"luminance":0.0788,"contrast":{"black":2.58,"white":8.15}}

WCAG

{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":2.58,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":8.15,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"#4B0807","hex":"#4B0807","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.34,"contrastWhite":15.72,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Carmine","hex":"#960018","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.31,"contrastWhite":9.09,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Crimson Red","hex":"#990000","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.35,"contrastWhite":8.92,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#8C2321","hex":"#8C2321","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.38,"contrastWhite":8.83,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Cranberry","hex":"#9F000F","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.48,"contrastWhite":8.46,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["warm red","balanced","balanced red","Cranberry adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/a0100e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/cranberry.json","https://www.colorsencyclopedia.com/api/colors/ruby-red.json","https://www.colorsencyclopedia.com/api/colors/carmine.json"]}

Harmonies

{"complementary":"#0E9DA0","analogous":["#A00E54","#A0590E"],"triadic":["#0EA010","#100EA0"],"tetradic":["#54A00E","#0E9DA0","#590EA0"],"splitComplementary":["#0EA059","#0E54A0"],"monochromatic":["#EB211E","#A0100E","#4B0807"]}

Variants

{"light":"#EB211E","dark":"#4B0807","saturated":"#AD0300","desaturated":"#8C2321","pastel":"#DF514E","neon":"#D60400"}

Nearest named colors

[{"slug":"cranberry","name":"Cranberry","hex":"#9F000F","distance":16.06237840420901},{"slug":"ruby-red","name":"Ruby Red","hex":"#9B111E","distance":16.792855623746664},{"slug":"carmine","name":"Carmine","hex":"#960018","distance":21.354156504062622},{"slug":"crimson-red","name":"Crimson Red","hex":"#990000","distance":22.38302928559939},{"slug":"pompeian-red","name":"Pompeian Red","hex":"#A42A04","distance":28.142494558940577}]

HEX meaning and use

About #A0100E

#A0100E is classified as a warm red value with balanced visual character. #A0100E is visually closest to Cranberry, a named red color with HEX #9F000F.

The RGB channels are 160, 16, and 14, with red carrying the strongest channel weight. In HSL, the hue is 1deg with 84% saturation and 34% lightness, so this page treats it as a high-saturation, mid-lightness 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 0.0788, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 16.06, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.58:1AA Fail

White text8.15:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF, #F5F5F5.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #A0100E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.58:1 · Fail

White text#FFFFFF8.15:1 · AAA

Accessible Alternatives

#4B0807#FFFFFF text · best 15.72:1#4B0807

Carmine#FFFFFF text · best 9.09:1#960018

Crimson Red#FFFFFF text · best 8.92:1#990000

#8C2321#FFFFFF text · best 8.83:1#8C2321

Cranberry#FFFFFF text · best 8.46:1#9F000F

Generated Palette

#A0100E#A0100E

#0E9DA0#0E9DA0

#A00E54#A00E54

#A0590E#A0590E

#EB211E#EB211E

#4B0807#4B0807

Color Harmonies

#0E9DA0#0E9DA0

#A00E54#A00E54

#A0590E#A0590E

#0EA010#0EA010

#100EA0#100EA0

Variants

#EB211E#EB211E

#4B0807#4B0807

#AD0300#AD0300

#8C2321#8C2321

#DF514E#DF514E

#D60400#D60400

Nearest Named Colors

Cranberry#9F000F

Ruby Red#9B111E

Carmine#960018

Crimson Red#990000

Pompeian Red#A42A04

#A0100E

CSS

Machine-Readable HEX Data (JSON)

About #A0100E

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides