HEX atlas value

#3FA509

#3FA509 is a cool green HEX color close to Kelly Green. According to Colors Encyclopedia, it converts to RGB 63, 165, 9, HSL 99, 90%, 34%, has luminance 0.2799, and belongs to the jewel tone group.

green cool jewel-tone

#3FA509 Sample readable text

HEX #3FA509

RGB rgb(63, 165, 9)

HSL hsl(99 90% 34%)

CMYK cmyk(62, 0, 95, 35)

Luminance 0.2799

Contrast Black 6.6:1White 3.18:1

CSS

--color-3fa509: #3FA509;
.background-3fa509 { background-color: #3FA509; }
.text-3fa509 { color: #3FA509; }

Luminance0.2799

Black text6.6:1AA Pass

White text3.18:1AA 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":"#3FA509","rgb":[63,165,9],"hsl":[99,90,34],"cmyk":[62,0,95,35],"luminance":0.2799,"contrast":{"black":6.6,"white":3.18}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":6.6,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.18,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#64F316","hex":"#64F316","family":"green","bestTextColor":"#000000","contrastBlack":14.37,"contrastWhite":1.46,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#1E4E04","hex":"#1E4E04","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.15,"contrastWhite":9.79,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#6E09A5","hex":"#6E09A5","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":2.25,"contrastWhite":9.35,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Kelly Green","hex":"#4CBB17","family":"green","bestTextColor":"#000000","contrastBlack":8.43,"contrastWhite":2.49,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]},{"name":"#8DA509","hex":"#8DA509","family":"yellow","bestTextColor":"#000000","contrastBlack":7.52,"contrastWhite":2.79,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]

AI context

{"semanticGroups":["cool green","jewel tone","jewel tone green","Kelly Green adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/3fa509.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/kelly-green.json","https://www.colorsencyclopedia.com/api/colors/scheeles-green.json","https://www.colorsencyclopedia.com/api/colors/avocado.json"]}

Harmonies

{"complementary":"#6E09A5","analogous":["#8DA509","#09A520"],"triadic":["#093FA5","#A5093F"],"tetradic":["#098DA5","#6E09A5","#A52009"],"splitComplementary":["#2009A5","#A5098D"],"monochromatic":["#64F316","#3FA509","#1E4E04"]}

Variants

{"light":"#64F316","dark":"#1E4E04","saturated":"#3DAD00","desaturated":"#45921C","pastel":"#7FE548","neon":"#4BD600"}

Nearest named colors

[{"slug":"kelly-green","name":"Kelly Green","hex":"#4CBB17","distance":29.13760456866693},{"slug":"scheeles-green","name":"Scheele Green","hex":"#478800","distance":31.400636936215164},{"slug":"avocado","name":"Avocado","hex":"#568203","distance":42.30839160261236},{"slug":"forest-green","name":"Forest Green","hex":"#228B22","distance":46.281745861624536},{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":56.04462507680822}]

HEX meaning and use

About #3FA509

#3FA509 is classified as a cool green value with jewel tone visual character. #3FA509 is visually closest to Kelly Green, a named green color with HEX #4CBB17.

The RGB channels are 63, 165, and 9, with green carrying the strongest channel weight. In HSL, the hue is 99deg with 90% saturation and 34% 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 0.2799, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 29.14, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text6.6:1AA Pass

White text3.18:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #3FA509 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006.6:1 · AA

White text#FFFFFF3.18:1 · Fail

Accessible Alternatives

#64F316#000000 text · best 14.37:1#64F316

#1E4E04#FFFFFF text · best 9.79:1#1E4E04

#6E09A5#FFFFFF text · best 9.35:1#6E09A5

Kelly Green#000000 text · best 8.43:1#4CBB17

#8DA509#000000 text · best 7.52:1#8DA509

Generated Palette

#3FA509#3FA509

#6E09A5#6E09A5

#8DA509#8DA509

#09A520#09A520

#64F316#64F316

#1E4E04#1E4E04

Color Harmonies

#6E09A5#6E09A5

#8DA509#8DA509

#09A520#09A520

#093FA5#093FA5

#A5093F#A5093F

Variants

#64F316#64F316

#1E4E04#1E4E04

#3DAD00#3DAD00

#45921C#45921C

#7FE548#7FE548

#4BD600#4BD600

Nearest Named Colors

Kelly Green#4CBB17

Scheele Green#478800

Avocado#568203

Forest Green#228B22

Olive Drab#6B8E23

#3FA509

CSS

Machine-Readable HEX Data (JSON)

About #3FA509

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides