HEX atlas value

#EC3E27

#EC3E27 is a warm red HEX color close to Vermilion. According to Colors Encyclopedia, it converts to RGB 236, 62, 39, HSL 7, 84%, 54%, has luminance 0.2142, and belongs to the vibrant group.

red warm vibrant

#EC3E27 Sample readable text

HEX #EC3E27

RGB rgb(236, 62, 39)

HSL hsl(7 84% 54%)

CMYK cmyk(0, 74, 83, 7)

Luminance 0.2142

Contrast Black 5.28:1White 3.97:1

CSS

--color-ec3e27: #EC3E27;
.background-ec3e27 { background-color: #EC3E27; }
.text-ec3e27 { color: #EC3E27; }

Luminance0.2142

Black text5.28:1AA Pass

White text3.97:1AA Fail

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":"#EC3E27","rgb":[236,62,39],"hsl":[7,84,54],"cmyk":[0,74,83,7],"luminance":0.2142,"contrast":{"black":5.28,"white":3.97}}

WCAG

{"AA":["#000000"],"AAA":[]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":5.28,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.97,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#27D5EC","hex":"#27D5EC","family":"cyan","bestTextColor":"#000000","contrastBlack":11.82,"contrastWhite":1.78,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#ECA127","hex":"#ECA127","family":"orange","bestTextColor":"#000000","contrastBlack":9.69,"contrastWhite":2.17,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#F48A7C","hex":"#F48A7C","family":"red","bestTextColor":"#000000","contrastBlack":8.77,"contrastWhite":2.39,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#A9210F","hex":"#A9210F","family":"red","bestTextColor":"#FFFFFF","contrastBlack":2.91,"contrastWhite":7.21,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Fire Opal","hex":"#E95C20","family":"orange","bestTextColor":"#000000","contrastBlack":6.02,"contrastWhite":3.49,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]

AI context

{"semanticGroups":["warm red","vibrant","vibrant red","Vermilion adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","high-attention visual states"],"contrastSafeWith":["#000000"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/ec3e27.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/vermilion.json","https://www.colorsencyclopedia.com/api/colors/cinnabar.json","https://www.colorsencyclopedia.com/api/colors/poppy-red.json"]}

Harmonies

{"complementary":"#27D5EC","analogous":["#EC2773","#ECA127"],"triadic":["#27EC3E","#3E27EC"],"tetradic":["#73EC27","#27D5EC","#A127EC"],"splitComplementary":["#27ECA1","#2773EC"],"monochromatic":["#F48A7C","#EC3E27","#A9210F"]}

Variants

{"light":"#F48A7C","dark":"#A9210F","saturated":"#FF3014","desaturated":"#D25241","pastel":"#EEADA5","neon":"#FF543D"}

Nearest named colors

[{"slug":"vermilion","name":"Vermilion","hex":"#E34234","distance":16.30950643030009},{"slug":"cinnabar","name":"Cinnabar","hex":"#E44D2E","distance":18.384776310850235},{"slug":"poppy-red","name":"Poppy Red","hex":"#DC343B","distance":27.49545416973504},{"slug":"fire-opal","name":"Fire Opal","hex":"#E95C20","distance":30.95157508108432},{"slug":"persian-red","name":"Persian Red","hex":"#CC3333","distance":35.90264614203248}]

HEX meaning and use

About #EC3E27

#EC3E27 is classified as a warm red value with vibrant visual character. #EC3E27 is visually closest to Vermilion, a named red color with HEX #E34234.

The RGB channels are 236, 62, and 39, with red carrying the strongest channel weight. In HSL, the hue is 7deg with 84% saturation and 54% 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 0.2142, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 16.31, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.28:1AA Pass

White text3.97:1AA Fail

AA text options: #000000.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #EC3E27 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.28:1 · AA

White text#FFFFFF3.97:1 · Fail

Accessible Alternatives

#27D5EC#000000 text · best 11.82:1#27D5EC

#ECA127#000000 text · best 9.69:1#ECA127

#F48A7C#000000 text · best 8.77:1#F48A7C

#A9210F#FFFFFF text · best 7.21:1#A9210F

Fire Opal#000000 text · best 6.02:1#E95C20

Generated Palette

#EC3E27#EC3E27

#27D5EC#27D5EC

#EC2773#EC2773

#ECA127#ECA127

#F48A7C#F48A7C

#A9210F#A9210F

Color Harmonies

#27D5EC#27D5EC

#EC2773#EC2773

#ECA127#ECA127

#27EC3E#27EC3E

#3E27EC#3E27EC

Variants

#F48A7C#F48A7C

#A9210F#A9210F

#FF3014#FF3014

#D25241#D25241

#EEADA5#EEADA5

#FF543D#FF543D

Nearest Named Colors

Vermilion#E34234

Cinnabar#E44D2E

Poppy Red#DC343B

Fire Opal#E95C20

Persian Red#CC3333

#EC3E27

CSS

Machine-Readable HEX Data (JSON)

About #EC3E27

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides