Colors Encyclopedia

HEX atlas value

#78A121

#78A121 is a cool green HEX color close to Olive Drab. According to Colors Encyclopedia, it converts to RGB 120, 161, 33, HSL 79, 66%, 38%, has luminance 0.2959, and belongs to the jewel tone group.

greencooljewel-tone
#78A121 Sample readable text
HEX #78A121
RGB rgb(120, 161, 33)
HSL hsl(79 66% 38%)
CMYK cmyk(25, 0, 80, 37)
Luminance 0.2959
Contrast Black 6.92:1White 3.04:1

CSS

--color-78a121: #78A121;
.background-78a121 { background-color: #78A121; }
.text-78a121 { color: #78A121; }

Machine-readable data

Machine-Readable HEX Data (JSON)

Structured HEX color data for conversion, WCAG checks, CSS generation, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.2959
Black text6.92:1AA Pass
White text3.04:1AA 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
Download JSON Open API
Structured sections
Color systems
{"hex":"#78A121","rgb":[120,161,33],"hsl":[79,66,38],"cmyk":[25,0,80,37],"luminance":0.2959,"contrast":{"black":6.92,"white":3.04}}
WCAG
{"AA":["#000000","#1A1A1A"],"AAA":[]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":6.92,"wcagAA":true,"wcagAAA":false},{"name":"White text","hex":"#FFFFFF","contrast":3.04,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#AAD945","hex":"#AAD945","family":"green","bestTextColor":"#000000","contrastBlack":12.72,"contrastWhite":1.65,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#4921A1","hex":"#4921A1","family":"purple","bestTextColor":"#FFFFFF","contrastBlack":2.02,"contrastWhite":10.42,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#80B60C","hex":"#80B60C","family":"green","bestTextColor":"#000000","contrastBlack":8.61,"contrastWhite":2.44,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#3F5511","hex":"#3F5511","family":"green","bestTextColor":"#FFFFFF","contrastBlack":2.52,"contrastWhite":8.34,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]},{"name":"#38A121","hex":"#38A121","family":"green","bestTextColor":"#000000","contrastBlack":6.29,"contrastWhite":3.34,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":[]}]
AI context
{"semanticGroups":["cool green","jewel tone","jewel tone green","Olive Drab 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/78a121.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/olive-drab.json","https://www.colorsencyclopedia.com/api/colors/olive-leaf.json","https://www.colorsencyclopedia.com/api/colors/olive-green.json"]}
Harmonies
{"complementary":"#4921A1","analogous":["#A18921","#38A121"],"triadic":["#2178A1","#A12178"],"tetradic":["#21A189","#4921A1","#A12138"],"splitComplementary":["#2138A1","#8921A1"],"monochromatic":["#AAD945","#78A121","#3F5511"]}
Variants
{"light":"#AAD945","dark":"#3F5511","saturated":"#80B60C","desaturated":"#718C36","pastel":"#B2D171","neon":"#A0EB00"}
Nearest named colors
[{"slug":"olive-drab","name":"Olive Drab","hex":"#6B8E23","distance":23.108440016582687},{"slug":"olive-leaf","name":"Olive Leaf","hex":"#6B8E23","distance":23.108440016582687},{"slug":"olive-green","name":"Olive Green","hex":"#708238","distance":39.42080668885405},{"slug":"olive","name":"Olive","hex":"#808000","distance":47.34976240700686},{"slug":"fern-frond","name":"Fern Frond","hex":"#657220","distance":50.70502933634887}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #78A121

#78A121 is classified as a cool green value with jewel tone visual character. #78A121 is visually closest to Olive Drab, a named green color with HEX #6B8E23.

The RGB channels are 120, 161, and 33, with green carrying the strongest channel weight. In HSL, the hue is 79deg with 66% saturation and 38% lightness, so this page treats it as a moderate-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 0.2959, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 23.11, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text6.92:1AA Pass
White text3.04:1AA Fail

AA text options: #000000, #1A1A1A.

AAA text options: none in seed set.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #78A121 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#0000006.92:1 · AA
White text#FFFFFF3.04:1 · Fail

Accessible Alternatives

#AAD945#000000 text · best 12.72:1#AAD945
#4921A1#FFFFFF text · best 10.42:1#4921A1
#80B60C#000000 text · best 8.61:1#80B60C
#3F5511#FFFFFF text · best 8.34:1#3F5511
#38A121#000000 text · best 6.29:1#38A121

Generated Palette

#78A121#78A121
#4921A1#4921A1
#A18921#A18921
#38A121#38A121
#AAD945#AAD945
#3F5511#3F5511

Color Harmonies

#4921A1#4921A1
#A18921#A18921
#38A121#38A121
#2178A1#2178A1
#A12178#A12178

Variants

#AAD945#AAD945
#3F5511#3F5511
#80B60C#80B60C
#718C36#718C36
#B2D171#B2D171
#A0EB00#A0EB00

Nearest Named Colors

Olive Drab#6B8E23
Olive Leaf#6B8E23
Olive Green#708238
Olive#808000
Fern Frond#657220

Related HEX Guides

Olive Drab colorOpen the nearest named color reference for #6B8E23.Olive Leaf colorOpen the nearest named color reference for #6B8E23.Olive Green colorOpen the nearest named color reference for #708238.Green color familyBrowse named green colors related to this HEX value.Cool colorsExplore colors with similar temperature behavior.Jewel Tone colorsFind colors in the jewel tone group.Color palettesBrowse palette systems related to generated color combinations.Compare colorsCompare named colors near this HEX value.Accessible colorsBrowse WCAG-friendly named colors and safe text options.#78A121 APIOpen the machine-readable JSON record for this HEX value.