HEX atlas value

#21661E

#21661E is a cool green HEX color close to Terre Verte. According to Colors Encyclopedia, it converts to RGB 33, 102, 30, HSL 118, 55%, 26%, has luminance 0.0992, and belongs to the earth tone and jewel tone groups.

green cool earth-tone jewel-tone

#21661E Sample readable text

HEX #21661E

RGB rgb(33, 102, 30)

HSL hsl(118 55% 26%)

CMYK cmyk(68, 0, 71, 60)

Luminance 0.0992

Contrast Black 2.98:1White 7.04:1

CSS

--color-21661e: #21661E;
.background-21661e { background-color: #21661E; }
.text-21661e { color: #21661E; }

Luminance0.0992

Black text2.98:1AA Fail

White text7.04:1AA Pass

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":"#21661E","rgb":[33,102,30],"hsl":[118,55,26],"cmyk":[68,0,71,60],"luminance":0.0992,"contrast":{"black":2.98,"white":7.04}}

WCAG

{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":2.98,"wcagAA":false,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":7.04,"wcagAA":true,"wcagAAA":true}]

Accessible alternatives

[{"name":"#0A2009","hex":"#0A2009","family":"green","bestTextColor":"#FFFFFF","contrastBlack":1.22,"contrastWhite":17.16,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#641E67","hex":"#641E67","family":"pink","bestTextColor":"#FFFFFF","contrastBlack":1.92,"contrastWhite":10.91,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#2E582C","hex":"#2E582C","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.55,"contrastWhite":8.24,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"Terre Verte","hex":"#385E0F","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.78,"contrastWhite":7.56,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]},{"name":"Emerald Dark","hex":"#046307","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.79,"contrastWhite":7.52,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF"]}]

AI context

{"semanticGroups":["cool green","earth tone","jewel tone","earth tone green","jewel tone green","Terre Verte adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","natural palettes","rich accent palettes","botanical and wellness palettes"],"contrastSafeWith":["#FFFFFF","#F5F5F5"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/21661e.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/terre-verte.json","https://www.colorsencyclopedia.com/api/colors/hunter-green.json","https://www.colorsencyclopedia.com/api/colors/emerald-dark.json"]}

Harmonies

{"complementary":"#641E67","analogous":["#45671E","#1E6740"],"triadic":["#1E2067","#671E20"],"tetradic":["#1E4567","#641E67","#67401E"],"splitComplementary":["#401E67","#671E45"],"monochromatic":["#37AE32","#21661E","#0A2009"]}

Variants

{"light":"#37AE32","dark":"#0A2009","saturated":"#13750F","desaturated":"#2E582C","pastel":"#53B450","neon":"#06AD00"}

Nearest named colors

[{"slug":"terre-verte","name":"Terre Verte","hex":"#385E0F","distance":28.600699292150182},{"slug":"hunter-green","name":"Hunter Green","hex":"#355E3B","distance":36.124783736376884},{"slug":"emerald-dark","name":"Emerald Dark","hex":"#046307","distance":37.134889255254286},{"slug":"forest-green","name":"Forest Green","hex":"#228B22","distance":37.22902093797257},{"slug":"moss-deep","name":"Moss Deep","hex":"#4A5D23","distance":42.2729227756965}]

HEX meaning and use

About #21661E

#21661E is classified as a cool green value with earth tone and jewel tone visual character. #21661E is visually closest to Terre Verte, a named green color with HEX #385E0F.

The RGB channels are 33, 102, and 30, with green carrying the strongest channel weight. In HSL, the hue is 118deg with 55% saturation and 26% lightness, so this page treats it as a moderate-saturation, dark 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 natural palettes. Its luminance is 0.0992, white text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 28.60, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text2.98:1AA Fail

White text7.04:1AA Pass

AA text options: #FFFFFF, #F5F5F5.

AAA text options: #FFFFFF.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #21661E needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000002.98:1 · Fail

White text#FFFFFF7.04:1 · AAA

Accessible Alternatives

#0A2009#FFFFFF text · best 17.16:1#0A2009

#641E67#FFFFFF text · best 10.91:1#641E67

#2E582C#FFFFFF text · best 8.24:1#2E582C

Terre Verte#FFFFFF text · best 7.56:1#385E0F

Emerald Dark#FFFFFF text · best 7.52:1#046307

Generated Palette

#21661E#21661E

#641E67#641E67

#45671E#45671E

#1E6740#1E6740

#37AE32#37AE32

#0A2009#0A2009

Color Harmonies

#641E67#641E67

#45671E#45671E

#1E6740#1E6740

#1E2067#1E2067

#671E20#671E20

Variants

#37AE32#37AE32

#0A2009#0A2009

#13750F#13750F

#2E582C#2E582C

#53B450#53B450

#06AD00#06AD00

Nearest Named Colors

Terre Verte#385E0F

Hunter Green#355E3B

Emerald Dark#046307

Forest Green#228B22

Moss Deep#4A5D23

#21661E

CSS

Machine-Readable HEX Data (JSON)

About #21661E

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides