HEX atlas value

#A73C1B

#A73C1B is a warm red HEX color close to Rust. According to Colors Encyclopedia, it converts to RGB 167, 60, 27, HSL 14, 72%, 38%, has luminance 0.1153, and belongs to the vibrant group.

red warm vibrant

#A73C1B Sample readable text

HEX #A73C1B

RGB rgb(167, 60, 27)

HSL hsl(14 72% 38%)

CMYK cmyk(0, 64, 84, 35)

Luminance 0.1153

Contrast Black 3.31:1White 6.35:1

CSS

--color-a73c1b: #A73C1B;
.background-a73c1b { background-color: #A73C1B; }
.text-a73c1b { color: #A73C1B; }

Luminance0.1153

Black text3.31:1AA Fail

White text6.35:1AA 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":"#A73C1B","rgb":[167,60,27],"hsl":[14,72,38],"cmyk":[0,64,84,35],"luminance":0.1153,"contrast":{"black":3.31,"white":6.35}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":3.31,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":6.35,"wcagAA":true,"wcagAAA":false}]

Accessible alternatives

[{"name":"#581F0E","hex":"#581F0E","family":"red","bestTextColor":"#FFFFFF","contrastBlack":1.62,"contrastWhite":12.98,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#A71B40","hex":"#A71B40","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":2.87,"contrastWhite":7.31,"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"]},{"name":"Firebrick","hex":"#B22222","family":"red","bestTextColor":"#FFFFFF","contrastBlack":3.14,"contrastWhite":6.68,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":[]}]

AI context

{"semanticGroups":["warm red","vibrant","vibrant red","Rust 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/a73c1b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/rust.json","https://www.colorsencyclopedia.com/api/colors/brown.json","https://www.colorsencyclopedia.com/api/colors/firebrick.json"]}

Harmonies

{"complementary":"#1B86A7","analogous":["#A71B40","#A7811B"],"triadic":["#1BA73C","#3C1BA7"],"tetradic":["#40A71B","#1B86A7","#811BA7"],"splitComplementary":["#1BA781","#1B40A7"],"monochromatic":["#E0643E","#A73C1B","#581F0E"]}

Variants

{"light":"#E0643E","dark":"#581F0E","saturated":"#BC3006","desaturated":"#914730","pastel":"#D6846B","neon":"#EB3700"}

Nearest named colors

[{"slug":"rust","name":"Rust","hex":"#B7410E","distance":21.213203435596427},{"slug":"brown","name":"Brown","hex":"#A52A2A","distance":23.515952032609693},{"slug":"firebrick","name":"Firebrick","hex":"#B22222","distance":29.086079144497972},{"slug":"sienna","name":"Sienna","hex":"#A0522D","distance":29.274562336608895},{"slug":"pompeian-red","name":"Pompeian Red","hex":"#A42A04","distance":29.359836511806396}]

HEX meaning and use

About #A73C1B

#A73C1B is classified as a warm red value with vibrant visual character. #A73C1B is visually closest to Rust, a named orange color with HEX #B7410E.

The RGB channels are 167, 60, and 27, with red carrying the strongest channel weight. In HSL, the hue is 14deg with 72% 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 0.1153, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 21.21, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text3.31:1AA Fail

White text6.35:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #A73C1B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000003.31:1 · Fail

White text#FFFFFF6.35:1 · AA

Accessible Alternatives

#581F0E#FFFFFF text · best 12.98:1#581F0E

#A71B40#FFFFFF text · best 7.31:1#A71B40

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

Brown#FFFFFF text · best 7.09:1#A52A2A

Firebrick#FFFFFF text · best 6.68:1#B22222

Generated Palette

#A73C1B#A73C1B

#1B86A7#1B86A7

#A71B40#A71B40

#A7811B#A7811B

#E0643E#E0643E

#581F0E#581F0E

Color Harmonies

#1B86A7#1B86A7

#A71B40#A71B40

#A7811B#A7811B

#1BA73C#1BA73C

#3C1BA7#3C1BA7

Variants

#E0643E#E0643E

#581F0E#581F0E

#BC3006#BC3006

#914730#914730

#D6846B#D6846B

#EB3700#EB3700

Nearest Named Colors

Rust#B7410E

Brown#A52A2A

Firebrick#B22222

Sienna#A0522D

Pompeian Red#A42A04

#A73C1B

CSS

Machine-Readable HEX Data (JSON)

About #A73C1B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides