HEX atlas value

#ECF3EE

#ECF3EE is a cool green HEX color close to Porcelain. According to Colors Encyclopedia, it converts to RGB 236, 243, 238, HSL 137, 23%, 94%, has luminance 0.8811, and belongs to the light group.

#ECF3EE Sample readable text
HEX #ECF3EE
RGB rgb(236, 243, 238)
HSL hsl(137 23% 94%)
CMYK cmyk(3, 0, 2, 5)
Luminance 0.8811
Contrast Black 18.62:1White 1.13:1

CSS

--color-ecf3ee: #ECF3EE;
.background-ecf3ee { background-color: #ECF3EE; }
.text-ecf3ee { color: #ECF3EE; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.8811
Black text18.62:1AA Pass
White text1.13:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#ECF3EE","rgb":[236,243,238],"hsl":[137,23,94],"cmyk":[3,0,2,5],"luminance":0.8811,"contrast":{"black":18.62,"white":1.13}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A","#36454F"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":18.62,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.13,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"White","hex":"#FFFFFF","family":"gray","bestTextColor":"#000000","contrastBlack":21,"contrastWhite":1,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Paper White","hex":"#F7F7F2","family":"yellow","bestTextColor":"#000000","contrastBlack":19.54,"contrastWhite":1.07,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"White Smoke","hex":"#F5F5F5","family":"gray","bestTextColor":"#000000","contrastBlack":19.26,"contrastWhite":1.09,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#E9F7ED","hex":"#E9F7ED","family":"green","bestTextColor":"#000000","contrastBlack":18.99,"contrastWhite":1.11,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Porcelain","hex":"#F2F3F4","family":"blue","bestTextColor":"#000000","contrastBlack":18.9,"contrastWhite":1.11,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]
AI context
{"semanticGroups":["cool green","light","light green","Porcelain adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","light surfaces","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/ecf3ee.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/porcelain.json","https://www.colorsencyclopedia.com/api/colors/mercury.json","https://www.colorsencyclopedia.com/api/colors/marble-white.json"]}
Harmonies
{"complementary":"#F3ECF1","analogous":["#EEF3EC","#ECF3F2"],"triadic":["#EEECF3","#F3EEEC"],"tetradic":["#ECEEF3","#F3ECF1","#F3F2EC"],"splitComplementary":["#F2ECF3","#F3ECEE"],"monochromatic":["#FFFFFF","#ECF3EE","#B4D0BC"]}
Variants
{"light":"#FFFFFF","dark":"#B4D0BC","saturated":"#E9F7ED","desaturated":"#F0F0F0","pastel":"#FFFFFF","neon":"#FFFFFF"}
Nearest named colors
[{"slug":"porcelain","name":"Porcelain","hex":"#F2F3F4","distance":8.48528137423857},{"slug":"mercury","name":"Mercury","hex":"#EBEBEB","distance":8.602325267042627},{"slug":"marble-white","name":"Marble White","hex":"#F2F0E6","distance":10.44030650891055},{"slug":"white-smoke","name":"White Smoke","hex":"#F5F5F5","distance":11.575836902790225},{"slug":"paper-white","name":"Paper White","hex":"#F7F7F2","distance":12.36931687685298}]

HEX meaning and use

About #ECF3EE

#ECF3EE is classified as a cool green value with light visual character. #ECF3EE is visually closest to Porcelain, a named blue color with HEX #F2F3F4.

The RGB channels are 236, 243, and 238, with green carrying the strongest channel weight. In HSL, the hue is 137deg with 23% saturation and 94% lightness, so this page treats it as a low-saturation, light 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 light surfaces. Its luminance is 0.8811, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 8.49, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text18.62:1AA Pass
White text1.13:1AA Fail

AA text options: #000000, #1A1A1A, #36454F.

AAA text options: #000000, #1A1A1A, #36454F.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #ECF3EE needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000018.62:1 · AAA
White text#FFFFFF1.13:1 · Fail

Accessible Alternatives

White#000000 text · best 21:1#FFFFFF
Paper White#000000 text · best 19.54:1#F7F7F2
White Smoke#000000 text · best 19.26:1#F5F5F5
#E9F7ED#000000 text · best 18.99:1#E9F7ED
Porcelain#000000 text · best 18.9:1#F2F3F4

Generated Palette

#ECF3EE#ECF3EE
#F3ECF1#F3ECF1
#EEF3EC#EEF3EC
#ECF3F2#ECF3F2
White#FFFFFF
#B4D0BC#B4D0BC

Color Harmonies

#F3ECF1#F3ECF1
#EEF3EC#EEF3EC
#ECF3F2#ECF3F2
#EEECF3#EEECF3
#F3EEEC#F3EEEC

Variants

White#FFFFFF
#B4D0BC#B4D0BC
#E9F7ED#E9F7ED
#F0F0F0#F0F0F0
White#FFFFFF
White#FFFFFF

Nearest Named Colors