HEX atlas value

#55FC63

#55FC63 is a cool green HEX color close to Emerald. According to Colors Encyclopedia, it converts to RGB 85, 252, 99, HSL 125, 97%, 66%, has luminance 0.7245, and belongs to the vibrant group.

green cool vibrant

#55FC63 Sample readable text

HEX #55FC63

RGB rgb(85, 252, 99)

HSL hsl(125 97% 66%)

CMYK cmyk(66, 0, 61, 1)

Luminance 0.7245

Contrast Black 15.49:1White 1.36:1

CSS

--color-55fc63: #55FC63;
.background-55fc63 { background-color: #55FC63; }
.text-55fc63 { color: #55FC63; }

Luminance0.7245

Black text15.49:1AA Pass

White text1.36:1AA 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":"#55FC63","rgb":[85,252,99],"hsl":[125,97,66],"cmyk":[66,0,61,1],"luminance":0.7245,"contrast":{"black":15.49,"white":1.36}}

WCAG

{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A","#36454F"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":15.49,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.36,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#AFFEB5","hex":"#AFFEB5","family":"green","bestTextColor":"#000000","contrastBlack":17.67,"contrastWhite":1.19,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#9AFC54","hex":"#9AFC54","family":"green","bestTextColor":"#000000","contrastBlack":16.43,"contrastWhite":1.28,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#54FCB6","hex":"#54FCB6","family":"green","bestTextColor":"#000000","contrastBlack":15.98,"contrastWhite":1.31,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#52FF60","hex":"#52FF60","family":"green","bestTextColor":"#000000","contrastBlack":15.83,"contrastWhite":1.33,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Light Green","hex":"#90EE90","family":"green","bestTextColor":"#000000","contrastBlack":14.82,"contrastWhite":1.42,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

{"semanticGroups":["cool green","vibrant","vibrant green","Emerald adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/55fc63.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/emerald.json","https://www.colorsencyclopedia.com/api/colors/paris-green.json","https://www.colorsencyclopedia.com/api/colors/toxic-green.json"]}

Harmonies

{"complementary":"#FC54EE","analogous":["#9AFC54","#54FCB6"],"triadic":["#6254FC","#FC6254"],"tetradic":["#549AFC","#FC54EE","#FCB654"],"splitComplementary":["#B654FC","#FC549A"],"monochromatic":["#AFFEB5","#55FC63","#04F117"]}

Variants

{"light":"#AFFEB5","dark":"#04F117","saturated":"#52FF60","desaturated":"#67E972","pastel":"#D5FBD8","neon":"#7AFF85"}

Nearest named colors

[{"slug":"emerald","name":"Emerald","hex":"#50C878","distance":56.302753041036986},{"slug":"paris-green","name":"Paris Green","hex":"#50C878","distance":56.302753041036986},{"slug":"toxic-green","name":"Toxic Green","hex":"#61DE2A","distance":65.52098900352466},{"slug":"light-green","name":"Light Green","hex":"#90EE90","distance":75.51158851461145},{"slug":"lime-green","name":"Lime Green","hex":"#32CD32","distance":76.38717169787084}]

HEX meaning and use

About #55FC63

#55FC63 is classified as a cool green value with vibrant visual character. #55FC63 is visually closest to Emerald, a named green color with HEX #50C878.

The RGB channels are 85, 252, and 99, with green carrying the strongest channel weight. In HSL, the hue is 125deg with 97% saturation and 66% 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 0.7245, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 56.30, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text15.49:1AA Pass

White text1.36:1AA Fail

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

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

Accessibility-Safe Pairings and Alternatives

Use these pairings when #55FC63 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000015.49:1 · AAA

White text#FFFFFF1.36:1 · Fail

Accessible Alternatives

#AFFEB5#000000 text · best 17.67:1#AFFEB5

#9AFC54#000000 text · best 16.43:1#9AFC54

#54FCB6#000000 text · best 15.98:1#54FCB6

#52FF60#000000 text · best 15.83:1#52FF60

Light Green#000000 text · best 14.82:1#90EE90

Generated Palette

#55FC63#55FC63

#FC54EE#FC54EE

#9AFC54#9AFC54

#54FCB6#54FCB6

#AFFEB5#AFFEB5

#04F117#04F117

Color Harmonies

#FC54EE#FC54EE

#9AFC54#9AFC54

#54FCB6#54FCB6

#6254FC#6254FC

#FC6254#FC6254

Variants

#AFFEB5#AFFEB5

#04F117#04F117

#52FF60#52FF60

#67E972#67E972

#D5FBD8#D5FBD8

#7AFF85#7AFF85

Nearest Named Colors

Emerald#50C878

Paris Green#50C878

Toxic Green#61DE2A

Light Green#90EE90

Lime Green#32CD32

#55FC63

CSS

Machine-Readable HEX Data (JSON)

About #55FC63

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides