HEX atlas value

#AC2415

#AC2415 is a warm red HEX color close to Firebrick. According to Colors Encyclopedia, it converts to RGB 172, 36, 21, HSL 6, 78%, 38%, has luminance 0.1009, and belongs to the vibrant group.

red warm vibrant

#AC2415 Sample readable text

HEX #AC2415

RGB rgb(172, 36, 21)

HSL hsl(6 78% 38%)

CMYK cmyk(0, 79, 88, 33)

Luminance 0.1009

Contrast Black 3.02:1White 6.96:1

CSS

--color-ac2415: #AC2415;
.background-ac2415 { background-color: #AC2415; }
.text-ac2415 { color: #AC2415; }

Luminance0.1009

Black text3.02:1AA Fail

White text6.96:1AA 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":"#AC2415","rgb":[172,36,21],"hsl":[6,78,38],"cmyk":[0,79,88,33],"luminance":0.1009,"contrast":{"black":3.02,"white":6.96}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3.02,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.96,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#5B130B","hex":"#5B130B","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.54,"contrastWhite":13.62,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Ruby Red","hex":"#9B111E","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.49,"contrastWhite":8.43,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#97352B","hex":"#97352B","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.86,"contrastWhite":7.34,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Pompeian Red","hex":"#A42A04","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.91,"contrastWhite":7.21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Brown","hex":"#A52A2A","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.96,"contrastWhite":7.09,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]}]

AI context

{"semanticGroups":["warm red","vibrant","vibrant red","Firebrick adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","high-attention visual states"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/ac2415.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/firebrick.json","https://www.colorsencyclopedia.com/api/colors/pompeian-red.json","https://www.colorsencyclopedia.com/api/colors/brown.json"]}

Harmonies

{"complementary":"#159DAC","analogous":["#AC1552","#AC7015"],"triadic":["#15AC24","#2415AC"],"tetradic":["#52AC15","#159DAC","#7015AC"],"splitComplementary":["#15AC70","#1552AC"],"monochromatic":["#E64937","#AC2415","#5B130B"]}

Variants

{"light":"#E64937","dark":"#5B130B","saturated":"#C21300","desaturated":"#97352B","pastel":"#DC7165","neon":"#EB1700"}

Nearest named colors

[{"slug":"firebrick","name":"Firebrick","hex":"#B22222","distance":14.45683229480096},{"slug":"pompeian-red","name":"Pompeian Red","hex":"#A42A04","distance":19.72308292331602},{"slug":"brown","name":"Brown","hex":"#A52A2A","distance":22.93468988235943},{"slug":"tool-red","name":"Tool Red","hex":"#B11226","distance":25.25866188063018},{"slug":"ruby-red","name":"Ruby Red","hex":"#9B111E","distance":27.03701166919155}]

HEX meaning and use

About #AC2415

#AC2415 is classified as a warm red value with vibrant visual character. #AC2415 is visually closest to Firebrick, a named red color with HEX #B22222.

The RGB channels are 172, 36, and 21, with red carrying the strongest channel weight. In HSL, the hue is 6deg with 78% saturation and 38% 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-energy accents. Its luminance is 0.1009, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 14.46, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.02:1AA Fail

White text6.96:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #AC2415 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.02:1 · Fail

White text#FFFFFF6.96:1 · AA

Accessible Alternatives

#5B130B#FFFFFF text · best 13.62:1#5B130B

Ruby Red#FFFFFF text · best 8.43:1#9B111E

#97352B#FFFFFF text · best 7.34:1#97352B

Pompeian Red#FFFFFF text · best 7.21:1#A42A04

Brown#FFFFFF text · best 7.09:1#A52A2A

Generated Palette

#AC2415#AC2415

#159DAC#159DAC

#AC1552#AC1552

#AC7015#AC7015

#E64937#E64937

#5B130B#5B130B

Color Harmonies

#159DAC#159DAC

#AC1552#AC1552

#AC7015#AC7015

#15AC24#15AC24

#2415AC#2415AC

Variants

#E64937#E64937

#5B130B#5B130B

#C21300#C21300

#97352B#97352B

#DC7165#DC7165

#EB1700#EB1700

Nearest Named Colors

Firebrick#B22222

Pompeian Red#A42A04

Brown#A52A2A

Tool Red#B11226

Ruby Red#9B111E

#AC2415

CSS

Machine-Readable HEX Data (JSON)

About #AC2415

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides