Colors Encyclopedia

HEX atlas value

#A9D1B5

#A9D1B5 is a cool green HEX color close to Opal. According to Colors Encyclopedia, it converts to RGB 169, 209, 181, HSL 138, 30%, 74%, has luminance 0.5737, and belongs to the balanced group.

greencoolbalanced
#A9D1B5 Sample readable text
HEX #A9D1B5
RGB rgb(169, 209, 181)
HSL hsl(138 30% 74%)
CMYK cmyk(19, 0, 13, 18)
Luminance 0.5737
Contrast Black 12.47:1White 1.68:1

CSS

--color-a9d1b5: #A9D1B5;
.background-a9d1b5 { background-color: #A9D1B5; }
.text-a9d1b5 { color: #A9D1B5; }

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
Luminance0.5737
Black text12.47:1AA Pass
White text1.68:1AA 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":"#A9D1B5","rgb":[169,209,181],"hsl":[138,30,74],"cmyk":[19,0,13,18],"luminance":0.5737,"contrast":{"black":12.47,"white":1.68}}
WCAG
{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}
Safe pairings
[{"name":"Black text","hex":"#000000","contrast":12.47,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.68,"wcagAA":false,"wcagAAA":false}]
Accessible alternatives
[{"name":"#E4F1E8","hex":"#E4F1E8","family":"green","bestTextColor":"#000000","contrastBlack":18.05,"contrastWhite":1.16,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Celadon","hex":"#ACE1AF","family":"green","bestTextColor":"#000000","contrastBlack":14.14,"contrastWhite":1.48,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#9ADFAF","hex":"#9ADFAF","family":"green","bestTextColor":"#000000","contrastBlack":13.55,"contrastWhite":1.55,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#A9D1C9","hex":"#A9D1C9","family":"cyan","bestTextColor":"#000000","contrastBlack":12.65,"contrastWhite":1.66,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#B1D1A9","hex":"#B1D1A9","family":"green","bestTextColor":"#000000","contrastBlack":12.56,"contrastWhite":1.67,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]
AI context
{"semanticGroups":["cool green","balanced","balanced green","Opal adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","botanical and wellness palettes"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/a9d1b5.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/opal.json","https://www.colorsencyclopedia.com/api/colors/celadon.json","https://www.colorsencyclopedia.com/api/colors/ash-gray.json"]}
Harmonies
{"complementary":"#D1A9C5","analogous":["#B1D1A9","#A9D1C9"],"triadic":["#B5A9D1","#D1B5A9"],"tetradic":["#A9B1D1","#D1A9C5","#D1C9A9"],"splitComplementary":["#C9A9D1","#D1A9B1"],"monochromatic":["#E4F1E8","#A9D1B5","#6DB081"]}
Variants
{"light":"#E4F1E8","dark":"#6DB081","saturated":"#9ADFAF","desaturated":"#B7C2BB","pastel":"#FCFDFC","neon":"#A3FFBF"}
Nearest named colors
[{"slug":"opal","name":"Opal","hex":"#A8C3BC","distance":15.684387141358123},{"slug":"celadon","name":"Celadon","hex":"#ACE1AF","distance":17.349351572897472},{"slug":"ash-gray","name":"Ash Gray","hex":"#B2BEB5","distance":21.02379604162864},{"slug":"pumice","name":"Pumice","hex":"#BAC0B4","distance":24.06241883103193},{"slug":"lichen","name":"Lichen","hex":"#9BC4A2","distance":26.94438717061496}]
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

HEX meaning and use

About #A9D1B5

#A9D1B5 is classified as a cool green value with balanced visual character. #A9D1B5 is visually closest to Opal, a named green color with HEX #A8C3BC.

The RGB channels are 169, 209, and 181, with green carrying the strongest channel weight. In HSL, the hue is 138deg with 30% saturation and 74% lightness, so this page treats it as a low-saturation, light 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 botanical and wellness palettes. Its luminance is 0.5737, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 15.68, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text12.47:1AA Pass
White text1.68:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #A9D1B5 needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000012.47:1 · AAA
White text#FFFFFF1.68:1 · Fail

Accessible Alternatives

#E4F1E8#000000 text · best 18.05:1#E4F1E8
Celadon#000000 text · best 14.14:1#ACE1AF
#9ADFAF#000000 text · best 13.55:1#9ADFAF
#A9D1C9#000000 text · best 12.65:1#A9D1C9
#B1D1A9#000000 text · best 12.56:1#B1D1A9

Generated Palette

#A9D1B5#A9D1B5
#D1A9C5#D1A9C5
#B1D1A9#B1D1A9
#A9D1C9#A9D1C9
#E4F1E8#E4F1E8
#6DB081#6DB081

Color Harmonies

#D1A9C5#D1A9C5
#B1D1A9#B1D1A9
#A9D1C9#A9D1C9
#B5A9D1#B5A9D1
#D1B5A9#D1B5A9

Variants

#E4F1E8#E4F1E8
#6DB081#6DB081
#9ADFAF#9ADFAF
#B7C2BB#B7C2BB
#FCFDFC#FCFDFC
#A3FFBF#A3FFBF

Nearest Named Colors

Opal#A8C3BC
Celadon#ACE1AF
Ash Gray#B2BEB5
Pumice#BAC0B4
Lichen#9BC4A2

Related HEX Guides

Opal colorOpen the nearest named color reference for #A8C3BC.Celadon colorOpen the nearest named color reference for #ACE1AF.Ash Gray colorOpen the nearest named color reference for #B2BEB5.Green color familyBrowse named green colors related to this HEX value.Cool colorsExplore colors with similar temperature behavior.Balanced colorsFind colors in the balanced 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.#A9D1B5 APIOpen the machine-readable JSON record for this HEX value.