HEX atlas value

#4EF20D

#4EF20D is a cool green HEX color close to Neon Green. According to Colors Encyclopedia, it converts to RGB 78, 242, 13, HSL 103, 90%, 50%, has luminance 0.6515, and belongs to the vibrant group.

green cool vibrant

#4EF20D Sample readable text

HEX #4EF20D

RGB rgb(78, 242, 13)

HSL hsl(103 90% 50%)

CMYK cmyk(68, 0, 95, 5)

Luminance 0.6515

Contrast Black 14.03:1White 1.5:1

CSS

--color-4ef20d: #4EF20D;
.background-4ef20d { background-color: #4EF20D; }
.text-4ef20d { color: #4EF20D; }

Luminance0.6515

Black text14.03:1AA Pass

White text1.5:1AA 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":"#4EF20D","rgb":[78,242,13],"hsl":[103,90,50],"cmyk":[68,0,95,5],"luminance":0.6515,"contrast":{"black":14.03,"white":1.5}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":14.03,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.5,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"Chartreuse","hex":"#7FFF00","family":"green","bestTextColor":"#000000","contrastBlack":16.21,"contrastWhite":1.3,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#C1F20D","hex":"#C1F20D","family":"green","bestTextColor":"#000000","contrastBlack":15.97,"contrastWhite":1.31,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Lawn Green","hex":"#7CFC00","family":"green","bestTextColor":"#000000","contrastBlack":15.78,"contrastWhite":1.33,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#8EF764","hex":"#8EF764","family":"green","bestTextColor":"#000000","contrastBlack":15.64,"contrastWhite":1.34,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#48FF00","hex":"#48FF00","family":"green","bestTextColor":"#000000","contrastBlack":15.58,"contrastWhite":1.35,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]}]

AI context

{"semanticGroups":["cool green","vibrant","vibrant green","Neon Green 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/4ef20d.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/neon-green.json","https://www.colorsencyclopedia.com/api/colors/toxic-green.json","https://www.colorsencyclopedia.com/api/colors/lawn-green.json"]}

Harmonies

{"complementary":"#B10DF2","analogous":["#C1F20D","#0DF23E"],"triadic":["#0D4EF2","#F20D4E"],"tetradic":["#0DC1F2","#B10DF2","#F23E0D"],"splitComplementary":["#3E0DF2","#F20DC1"],"monochromatic":["#8EF764","#4EF20D","#329B08"]}

Variants

{"light":"#8EF764","dark":"#329B08","saturated":"#48FF00","desaturated":"#5AD629","pastel":"#ABEF8F","neon":"#65FF29"}

Nearest named colors

[{"slug":"neon-green","name":"Neon Green","hex":"#39FF14","distance":25.67099530598687},{"slug":"toxic-green","name":"Toxic Green","hex":"#61DE2A","distance":40.024992192379},{"slug":"lawn-green","name":"Lawn Green","hex":"#7CFC00","distance":48.83646178829912},{"slug":"chartreuse","name":"Chartreuse","hex":"#7FFF00","distance":52.3354564325181},{"slug":"kelly-green","name":"Kelly Green","hex":"#4CBB17","distance":55.937465083787984}]

HEX meaning and use

About #4EF20D

#4EF20D is classified as a cool green value with vibrant visual character. #4EF20D is visually closest to Neon Green, a named green color with HEX #39FF14.

The RGB channels are 78, 242, and 13, with green carrying the strongest channel weight. In HSL, the hue is 103deg with 90% saturation and 50% 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 0.6515, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 25.67, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text14.03:1AA Pass

White text1.5:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #4EF20D needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000014.03:1 · AAA

White text#FFFFFF1.5:1 · Fail

Accessible Alternatives

Chartreuse#000000 text · best 16.21:1#7FFF00

#C1F20D#000000 text · best 15.97:1#C1F20D

Lawn Green#000000 text · best 15.78:1#7CFC00

#8EF764#000000 text · best 15.64:1#8EF764

#48FF00#000000 text · best 15.58:1#48FF00

Generated Palette

#4EF20D#4EF20D

#B10DF2#B10DF2

#C1F20D#C1F20D

#0DF23E#0DF23E

#8EF764#8EF764

#329B08#329B08

Color Harmonies

#B10DF2#B10DF2

#C1F20D#C1F20D

#0DF23E#0DF23E

#0D4EF2#0D4EF2

#F20D4E#F20D4E

Variants

#8EF764#8EF764

#329B08#329B08

#48FF00#48FF00

#5AD629#5AD629

#ABEF8F#ABEF8F

#65FF29#65FF29

Nearest Named Colors

Neon Green#39FF14

Toxic Green#61DE2A

Lawn Green#7CFC00

Chartreuse#7FFF00

Kelly Green#4CBB17

#4EF20D

CSS

Machine-Readable HEX Data (JSON)

About #4EF20D

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides