HEX atlas value

#11C51A

#11C51A is a cool green HEX color close to Lime Green. According to Colors Encyclopedia, it converts to RGB 17, 197, 26, HSL 123, 84%, 42%, has luminance 0.4013, and belongs to the vibrant and jewel tone groups.

green cool vibrant jewel-tone

#11C51A Sample readable text

HEX #11C51A

RGB rgb(17, 197, 26)

HSL hsl(123 84% 42%)

CMYK cmyk(91, 0, 87, 23)

Luminance 0.4013

Contrast Black 9.03:1White 2.33:1

CSS

--color-11c51a: #11C51A;
.background-11c51a { background-color: #11C51A; }
.text-11c51a { color: #11C51A; }

Luminance0.4013

Black text9.03:1AA Pass

White text2.33:1AA 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":"#11C51A","rgb":[17,197,26],"hsl":[123,84,42],"cmyk":[91,0,87,23],"luminance":0.4013,"contrast":{"black":9.03,"white":2.33}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":9.03,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.33,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"Fluorescent Green","hex":"#08FF08","family":"green","bestTextColor":"#000000","contrastBlack":15.32,"contrastWhite":1.37,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Lime","hex":"#00FF00","family":"green","bestTextColor":"#000000","contrastBlack":15.3,"contrastWhite":1.37,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#43EF4C","hex":"#43EF4C","family":"green","bestTextColor":"#000000","contrastBlack":13.69,"contrastWhite":1.53,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#00D60B","hex":"#00D60B","family":"green","bestTextColor":"#000000","contrastBlack":10.62,"contrastWhite":1.98,"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"]}]

AI context

{"semanticGroups":["cool green","vibrant","jewel tone","vibrant green","jewel tone green","Lime Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","rich accent palettes","high-energy accents","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/11c51a.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/lime-green.json","https://www.colorsencyclopedia.com/api/colors/kelly-green.json","https://www.colorsencyclopedia.com/api/colors/forest-green.json"]}

Harmonies

{"complementary":"#C511BC","analogous":["#62C511","#11C574"],"triadic":["#1A11C5","#C51A11"],"tetradic":["#1162C5","#C511BC","#C57411"],"splitComplementary":["#7411C5","#C51162"],"monochromatic":["#43EF4C","#11C51A","#0A710F"]}

Variants

{"light":"#43EF4C","dark":"#0A710F","saturated":"#00D60B","desaturated":"#29AE2F","pastel":"#71E577","neon":"#00FF0D"}

Nearest named colors

[{"slug":"lime-green","name":"Lime Green","hex":"#32CD32","distance":41.58124577258358},{"slug":"kelly-green","name":"Kelly Green","hex":"#4CBB17","distance":59.91660871578097},{"slug":"forest-green","name":"Forest Green","hex":"#228B22","distance":60.96720429870473},{"slug":"fluorescent-green","name":"Fluorescent Green","hex":"#08FF08","distance":61.39218191268331},{"slug":"lime","name":"Lime","hex":"#00FF00","distance":65.79513659838392}]

HEX meaning and use

About #11C51A

#11C51A is classified as a cool green value with vibrant and jewel tone visual character. #11C51A is visually closest to Lime Green, a named green color with HEX #32CD32.

The RGB channels are 17, 197, and 26, with green carrying the strongest channel weight. In HSL, the hue is 123deg with 84% saturation and 42% 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 rich accent palettes. Its luminance is 0.4013, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 41.58, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text9.03:1AA Pass

White text2.33:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #11C51A needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000009.03:1 · AAA

White text#FFFFFF2.33:1 · Fail

Accessible Alternatives

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

Lime#000000 text · best 15.3:1#00FF00

#43EF4C#000000 text · best 13.69:1#43EF4C

#00D60B#000000 text · best 10.62:1#00D60B

Lime Green#000000 text · best 9.91:1#32CD32

Generated Palette

#11C51A#11C51A

#C511BC#C511BC

#62C511#62C511

#11C574#11C574

#43EF4C#43EF4C

#0A710F#0A710F

Color Harmonies

#C511BC#C511BC

#62C511#62C511

#11C574#11C574

#1A11C5#1A11C5

#C51A11#C51A11

Variants

#43EF4C#43EF4C

#0A710F#0A710F

#00D60B#00D60B

#29AE2F#29AE2F

#71E577#71E577

#00FF0D#00FF0D

Nearest Named Colors

Lime Green#32CD32

Kelly Green#4CBB17

Forest Green#228B22

Fluorescent Green#08FF08

Lime#00FF00

#11C51A

CSS

Machine-Readable HEX Data (JSON)

About #11C51A

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides