HEX atlas value

#28C359

#28C359 is a cool green HEX color close to Medium Sea Green. According to Colors Encyclopedia, it converts to RGB 40, 195, 89, HSL 139, 66%, 46%, has luminance 0.402, and belongs to the balanced group.

#28C359 Sample readable text
HEX #28C359
RGB rgb(40, 195, 89)
HSL hsl(139 66% 46%)
CMYK cmyk(79, 0, 54, 24)
Luminance 0.402
Contrast Black 9.04:1White 2.32:1

CSS

--color-28c359: #28C359;
.background-28c359 { background-color: #28C359; }
.text-28c359 { color: #28C359; }

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
Luminance0.402
Black text9.04:1AA Pass
White text2.32:1AA 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":"#28C359","rgb":[40,195,89],"hsl":[139,66,46],"cmyk":[79,0,54,24],"luminance":0.402,"contrast":{"black":9.04,"white":2.32}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":9.04,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.32,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#67E08D","hex":"#67E08D","family":"green","bestTextColor":"#000000","contrastBlack":12.62,"contrastWhite":1.66,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#0EDD4F","hex":"#0EDD4F","family":"green","bestTextColor":"#000000","contrastBlack":11.47,"contrastWhite":1.83,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Lime Green","hex":"#32CD32","family":"green","bestTextColor":"#000000","contrastBlack":9.91,"contrastWhite":2.12,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Paris Green","hex":"#50C878","family":"green","bestTextColor":"#000000","contrastBlack":9.87,"contrastWhite":2.13,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#28C3A6","hex":"#28C3A6","family":"cyan","bestTextColor":"#000000","contrastBlack":9.45,"contrastWhite":2.22,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]}]
AI context
{"semanticGroups":["cool green","balanced","balanced green","Medium Sea Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/28c359.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/medium-sea-green.json","https://www.colorsencyclopedia.com/api/colors/lime-green.json","https://www.colorsencyclopedia.com/api/colors/emerald.json"]}
Harmonies
{"complementary":"#C32892","analogous":["#44C328","#28C3A6"],"triadic":["#5928C3","#C35928"],"tetradic":["#2844C3","#C32892","#C3A628"],"splitComplementary":["#A628C3","#C32844"],"monochromatic":["#67E08D","#28C359","#187736"]}
Variants
{"light":"#67E08D","dark":"#187736","saturated":"#0EDD4F","desaturated":"#42A962","pastel":"#8FDBA7","neon":"#14FF5F"}
Nearest named colors
[{"slug":"medium-sea-green","name":"Medium Sea Green","hex":"#3CB371","distance":35.09985754956849},{"slug":"lime-green","name":"Lime Green","hex":"#32CD32","distance":41.48493702538308},{"slug":"emerald","name":"Emerald","hex":"#50C878","distance":50.85272854036448},{"slug":"paris-green","name":"Paris Green","hex":"#50C878","distance":50.85272854036448},{"slug":"jade","name":"Jade","hex":"#00A86B","distance":51.507281038703645}]

HEX meaning and use

About #28C359

#28C359 is classified as a cool green value with balanced visual character. #28C359 is visually closest to Medium Sea Green, a named green color with HEX #3CB371.

The RGB channels are 40, 195, and 89, with green carrying the strongest channel weight. In HSL, the hue is 139deg with 66% saturation and 46% lightness, so this page treats it as a moderate-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 botanical and wellness palettes. Its luminance is 0.402, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 35.10, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text9.04:1AA Pass
White text2.32:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #28C359 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.04:1 · AAA
White text#FFFFFF2.32:1 · Fail

Accessible Alternatives

#67E08D#000000 text · best 12.62:1#67E08D
#0EDD4F#000000 text · best 11.47:1#0EDD4F
Lime Green#000000 text · best 9.91:1#32CD32
Paris Green#000000 text · best 9.87:1#50C878
#28C3A6#000000 text · best 9.45:1#28C3A6

Generated Palette

#28C359#28C359
#C32892#C32892
#44C328#44C328
#28C3A6#28C3A6
#67E08D#67E08D
#187736#187736

Color Harmonies

#C32892#C32892
#44C328#44C328
#28C3A6#28C3A6
#5928C3#5928C3
#C35928#C35928

Variants

#67E08D#67E08D
#187736#187736
#0EDD4F#0EDD4F
#42A962#42A962
#8FDBA7#8FDBA7
#14FF5F#14FF5F

Nearest Named Colors