HEX atlas value

#31FB2D

#31FB2D is a cool green HEX color close to Neon Green. According to Colors Encyclopedia, it converts to RGB 49, 251, 45, HSL 119, 96%, 58%, has luminance 0.6984, and belongs to the vibrant group.

green cool vibrant

#31FB2D Sample readable text

HEX #31FB2D

RGB rgb(49, 251, 45)

HSL hsl(119 96% 58%)

CMYK cmyk(80, 0, 82, 2)

Luminance 0.6984

Contrast Black 14.97:1White 1.4:1

CSS

--color-31fb2d: #31FB2D;
.background-31fb2d { background-color: #31FB2D; }
.text-31fb2d { color: #31FB2D; }

Luminance0.6984

Black text14.97:1AA Pass

White text1.4:1AA 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":"#31FB2D","rgb":[49,251,45],"hsl":[119,96,58],"cmyk":[80,0,82,2],"luminance":0.6984,"contrast":{"black":14.97,"white":1.4}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":14.97,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.4,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#89FD87","hex":"#89FD87","family":"green","bestTextColor":"#000000","contrastBlack":16.46,"contrastWhite":1.28,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#97FB2D","hex":"#97FB2D","family":"green","bestTextColor":"#000000","contrastBlack":16.15,"contrastWhite":1.3,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Neon Green","hex":"#39FF14","family":"green","bestTextColor":"#000000","contrastBlack":15.49,"contrastWhite":1.36,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#2CFF29","hex":"#2CFF29","family":"green","bestTextColor":"#000000","contrastBlack":15.44,"contrastWhite":1.36,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Fluorescent Green","hex":"#08FF08","family":"green","bestTextColor":"#000000","contrastBlack":15.32,"contrastWhite":1.37,"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/31fb2d.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/neon-green.json","https://www.colorsencyclopedia.com/api/colors/lime-green.json","https://www.colorsencyclopedia.com/api/colors/fluorescent-green.json"]}

Harmonies

{"complementary":"#F72DFB","analogous":["#97FB2D","#2DFB90"],"triadic":["#2D31FB","#FB2D31"],"tetradic":["#2D97FB","#F72DFB","#FB902D"],"splitComplementary":["#902DFB","#FB2D97"],"monochromatic":["#89FD87","#31FB2D","#07C804"]}

Variants

{"light":"#89FD87","dark":"#07C804","saturated":"#2CFF29","desaturated":"#47E345","pastel":"#B2F7B1","neon":"#54FF52"}

Nearest named colors

[{"slug":"neon-green","name":"Neon Green","hex":"#39FF14","distance":26.551836094703507},{"slug":"lime-green","name":"Lime Green","hex":"#32CD32","distance":46.281745861624536},{"slug":"fluorescent-green","name":"Fluorescent Green","hex":"#08FF08","distance":55.37147279962851},{"slug":"toxic-green","name":"Toxic Green","hex":"#61DE2A","distance":56.16048432839589},{"slug":"lime","name":"Lime","hex":"#00FF00","distance":66.64833081180653}]

HEX meaning and use

About #31FB2D

#31FB2D is classified as a cool green value with vibrant visual character. #31FB2D is visually closest to Neon Green, a named green color with HEX #39FF14.

The RGB channels are 49, 251, and 45, with green carrying the strongest channel weight. In HSL, the hue is 119deg with 96% saturation and 58% 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 0.6984, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 26.55, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text14.97:1AA Pass

White text1.4:1AA Fail

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

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

Accessibility-Safe Pairings and Alternatives

Use these pairings when #31FB2D needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000014.97:1 · AAA

White text#FFFFFF1.4:1 · Fail

Accessible Alternatives

#89FD87#000000 text · best 16.46:1#89FD87

#97FB2D#000000 text · best 16.15:1#97FB2D

Neon Green#000000 text · best 15.49:1#39FF14

#2CFF29#000000 text · best 15.44:1#2CFF29

Fluorescent Green#000000 text · best 15.32:1#08FF08

Generated Palette

#31FB2D#31FB2D

#F72DFB#F72DFB

#97FB2D#97FB2D

#2DFB90#2DFB90

#89FD87#89FD87

#07C804#07C804

Color Harmonies

#F72DFB#F72DFB

#97FB2D#97FB2D

#2DFB90#2DFB90

#2D31FB#2D31FB

#FB2D31#FB2D31

Variants

#89FD87#89FD87

#07C804#07C804

#2CFF29#2CFF29

#47E345#47E345

#B2F7B1#B2F7B1

#54FF52#54FF52

Nearest Named Colors

Neon Green#39FF14

Lime Green#32CD32

Fluorescent Green#08FF08

Toxic Green#61DE2A

Lime#00FF00

#31FB2D

CSS

Machine-Readable HEX Data (JSON)

About #31FB2D

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides