HEX atlas value

#EF524D

#EF524D is a warm red HEX color close to Tulip Red. According to Colors Encyclopedia, it converts to RGB 239, 82, 77, HSL 2, 84%, 62%, has luminance 0.2492, and belongs to the vibrant group.

red warm vibrant

#EF524D Sample readable text

HEX #EF524D

RGB rgb(239, 82, 77)

HSL hsl(2 84% 62%)

CMYK cmyk(0, 66, 68, 6)

Luminance 0.2492

Contrast Black 5.98:1White 3.51:1

CSS

--color-ef524d: #EF524D;
.background-ef524d { background-color: #EF524D; }
.text-ef524d { color: #EF524D; }

Luminance0.2492

Black text5.98:1AA Pass

White text3.51:1AA 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":"#EF524D","rgb":[239,82,77],"hsl":[2,84,62],"cmyk":[0,66,68,6],"luminance":0.2492,"contrast":{"black":5.98,"white":3.51}}

WCAG

{"AA":["#000000","#1A1A1A"],"AAA":[]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":5.98,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.51,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#4DEAEF","hex":"#4DEAEF","family":"cyan","bestTextColor":"#000000","contrastBlack":14.33,"contrastWhite":1.47,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#F7A4A1","hex":"#F7A4A1","family":"red","bestTextColor":"#000000","contrastBlack":10.78,"contrastWhite":1.95,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#EFA44D","hex":"#EFA44D","family":"orange","bestTextColor":"#000000","contrastBlack":10.09,"contrastWhite":2.08,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Tomato","hex":"#FF6347","family":"red","bestTextColor":"#000000","contrastBlack":7.13,"contrastWhite":2.95,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"Tulip Red","hex":"#FF4D4D","family":"red","bestTextColor":"#000000","contrastBlack":6.42,"contrastWhite":3.27,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]

AI context

{"semanticGroups":["warm red","vibrant","vibrant red","Tulip Red adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","high-attention visual states"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/ef524d.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/tulip-red.json","https://www.colorsencyclopedia.com/api/colors/tomato.json","https://www.colorsencyclopedia.com/api/colors/vermilion.json"]}

Harmonies

{"complementary":"#4DEAEF","analogous":["#EF4D99","#EFA44D"],"triadic":["#4DEF52","#524DEF"],"tetradic":["#99EF4D","#4DEAEF","#A44DEF"],"splitComplementary":["#4DEFA4","#4D99EF"],"monochromatic":["#F7A4A1","#EF524D","#CE1812"]}

Variants

{"light":"#F7A4A1","dark":"#CE1812","saturated":"#FF443D","desaturated":"#DA6662","pastel":"#F5C9C7","neon":"#FF6B66"}

Nearest named colors

[{"slug":"tulip-red","name":"Tulip Red","hex":"#FF4D4D","distance":16.76305461424021},{"slug":"tomato","name":"Tomato","hex":"#FF6347","distance":24.1039415863879},{"slug":"vermilion","name":"Vermilion","hex":"#E34234","distance":32.01562118716424},{"slug":"cinnabar","name":"Cinnabar","hex":"#E44D2E","distance":33.27160951922825},{"slug":"spinel","name":"Spinel","hex":"#D83A56","distance":34.438350715445125}]

HEX meaning and use

About #EF524D

#EF524D is classified as a warm red value with vibrant visual character. #EF524D is visually closest to Tulip Red, a named red color with HEX #FF4D4D.

The RGB channels are 239, 82, and 77, with red carrying the strongest channel weight. In HSL, the hue is 2deg with 84% saturation and 62% 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 0.2492, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 16.76, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text5.98:1AA Pass

White text3.51:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #EF524D needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000005.98:1 · AA

White text#FFFFFF3.51:1 · Fail

Accessible Alternatives

#4DEAEF#000000 text · best 14.33:1#4DEAEF

#F7A4A1#000000 text · best 10.78:1#F7A4A1

#EFA44D#000000 text · best 10.09:1#EFA44D

Tomato#000000 text · best 7.13:1#FF6347

Tulip Red#000000 text · best 6.42:1#FF4D4D

Generated Palette

#EF524D#EF524D

#4DEAEF#4DEAEF

#EF4D99#EF4D99

#EFA44D#EFA44D

#F7A4A1#F7A4A1

#CE1812#CE1812

Color Harmonies

#4DEAEF#4DEAEF

#EF4D99#EF4D99

#EFA44D#EFA44D

#4DEF52#4DEF52

#524DEF#524DEF

Variants

#F7A4A1#F7A4A1

#CE1812#CE1812

#FF443D#FF443D

#DA6662#DA6662

#F5C9C7#F5C9C7

#FF6B66#FF6B66

Nearest Named Colors

Tulip Red#FF4D4D

Tomato#FF6347

Vermilion#E34234

Cinnabar#E44D2E

Spinel#D83A56

#EF524D

CSS

Machine-Readable HEX Data (JSON)

About #EF524D

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides