HEX atlas value

#55FCA3

#55FCA3 is a cool green HEX color close to Medium Aquamarine. According to Colors Encyclopedia, it converts to RGB 85, 252, 163, HSL 148, 97%, 66%, has luminance 0.742, and belongs to the vibrant group.

green cool vibrant

#55FCA3 Sample readable text

HEX #55FCA3

RGB rgb(85, 252, 163)

HSL hsl(148 97% 66%)

CMYK cmyk(66, 0, 35, 1)

Luminance 0.742

Contrast Black 15.84:1White 1.33:1

CSS

--color-55fca3: #55FCA3;
.background-55fca3 { background-color: #55FCA3; }
.text-55fca3 { color: #55FCA3; }

Luminance0.742

Black text15.84:1AA Pass

White text1.33:1AA 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":"#55FCA3","rgb":[85,252,163],"hsl":[148,97,66],"cmyk":[66,0,35,1],"luminance":0.742,"contrast":{"black":15.84,"white":1.33}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":15.84,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.33,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#AFFED4","hex":"#AFFED4","family":"green","bestTextColor":"#000000","contrastBlack":17.95,"contrastWhite":1.17,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Aquamarine","hex":"#7FFFD4","family":"green","bestTextColor":"#000000","contrastBlack":17.16,"contrastWhite":1.22,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#54FCF7","hex":"#54FCF7","family":"cyan","bestTextColor":"#000000","contrastBlack":16.64,"contrastWhite":1.26,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#52FFA3","hex":"#52FFA3","family":"green","bestTextColor":"#000000","contrastBlack":16.19,"contrastWhite":1.3,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#5AFC54","hex":"#5AFC54","family":"green","bestTextColor":"#000000","contrastBlack":15.49,"contrastWhite":1.36,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]

AI context

{"semanticGroups":["cool green","vibrant","vibrant green","Medium Aquamarine 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/55fca3.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/medium-aquamarine.json","https://www.colorsencyclopedia.com/api/colors/turquoise.json","https://www.colorsencyclopedia.com/api/colors/medium-turquoise.json"]}

Harmonies

{"complementary":"#FC54AE","analogous":["#5AFC54","#54FCF7"],"triadic":["#A354FC","#FCA354"],"tetradic":["#545AFC","#FC54AE","#FCF754"],"splitComplementary":["#F754FC","#FC545A"],"monochromatic":["#AFFED4","#55FCA3","#04F172"]}

Variants

{"light":"#AFFED4","dark":"#04F172","saturated":"#52FFA3","desaturated":"#67E9A4","pastel":"#D5FBE7","neon":"#7AFFB8"}

Nearest named colors

[{"slug":"medium-aquamarine","name":"Medium Aquamarine","hex":"#66CDAA","distance":50.46781152378217},{"slug":"turquoise","name":"Turquoise","hex":"#40E0D0","distance":57.0087712549569},{"slug":"medium-turquoise","name":"Medium Turquoise","hex":"#48D1CC","distance":60.81940479813988},{"slug":"light-green","name":"Light Green","hex":"#90EE90","distance":63.54525946126902},{"slug":"aquamarine","name":"Aquamarine","hex":"#7FFFD4","distance":64.60650122085238}]

HEX meaning and use

About #55FCA3

#55FCA3 is classified as a cool green value with vibrant visual character. #55FCA3 is visually closest to Medium Aquamarine, a named green color with HEX #66CDAA.

The RGB channels are 85, 252, and 163, with green carrying the strongest channel weight. In HSL, the hue is 148deg 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 0.742, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 50.47, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text15.84:1AA Pass

White text1.33:1AA Fail

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

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

Accessibility-Safe Pairings and Alternatives

Use these pairings when #55FCA3 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000015.84:1 · AAA

White text#FFFFFF1.33:1 · Fail

Accessible Alternatives

#AFFED4#000000 text · best 17.95:1#AFFED4

Aquamarine#000000 text · best 17.16:1#7FFFD4

#54FCF7#000000 text · best 16.64:1#54FCF7

#52FFA3#000000 text · best 16.19:1#52FFA3

#5AFC54#000000 text · best 15.49:1#5AFC54

Generated Palette

#55FCA3#55FCA3

#FC54AE#FC54AE

#5AFC54#5AFC54

#54FCF7#54FCF7

#AFFED4#AFFED4

#04F172#04F172

Color Harmonies

#FC54AE#FC54AE

#5AFC54#5AFC54

#54FCF7#54FCF7

#A354FC#A354FC

#FCA354#FCA354

Variants

#AFFED4#AFFED4

#04F172#04F172

#52FFA3#52FFA3

#67E9A4#67E9A4

#D5FBE7#D5FBE7

#7AFFB8#7AFFB8

Nearest Named Colors

Medium Aquamarine#66CDAA

Turquoise#40E0D0

Medium Turquoise#48D1CC

Light Green#90EE90

Aquamarine#7FFFD4

#55FCA3

CSS

Machine-Readable HEX Data (JSON)

About #55FCA3

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides