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#81B18B Color

#81B18B is rgb(129, 177, 139) in RGB, hsl(133, 24%, 60%) in HSL, and about cmyk(27%, 0%, 21%, 31%) in CMYK. It has no registered color name of its own — the closest is Dark Sea Green (#8FBC8F), clearly related but distinguishable side by side at ΔE 5.51. Black text is the more readable choice on this background.

#81B18B
HEX#81B18B
RGBrgb(129, 177, 139)
HSLhsl(133, 24%, 60%)
HSVhsv(133, 27%, 69%)
CMYKcmyk(27%, 0%, 21%, 31%)
OKLCHoklch(71.6% 0.075 150.6)
LABlab(68.00% -22.51 14.15)
LCHlch(68.00% 26.59 147.83)

What #81B18B Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #81B18B, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Dark Sea Green#8FBC8FΔE 5.51Eton Blue#96C8A2ΔE 8.33Oxley#6D9A79ΔE 8.66Shiny Shamrock#5FA778ΔE 10.94Sage#9CAF88ΔE 11.01Forest Green (Crayola)#5FA777ΔE 11.22

Browse the full index of named colors A-Z or every green in the library.

#81B18B Channel Values

How #81B18B breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 129 · G 177 · B 1398-bit channels as sent to the display
HSLH 133° · S 24% · L 60%Easiest model for building lighter and darker variants
HSVH 133° · S 27% · V 69%Matches the picker in most design tools
CMYKC 27% · M 0% · Y 21% · K 31%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.44:1 vs white · 8.6:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #81B18B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

Fails AAWhite text2.44:1AA normal AA large AAA normal
TextBlack text8.6:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #81B18B in the contrast checker.

Colors That Go With #81B18B

Pairings derived from color-wheel relationships. The complementary color sits opposite #81B18B; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#81B18B
Complementary
#B181A7
Analogous
#8EB181
Analogous
#81B1A4
Triadic
#8B81B1
Triadic
#B18B81
Split comp.
#A481B1
Split comp.
#B1818E

Tints & Shades of #81B18B

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

#90BB9A
#A3C7AB
#B3D0B9
#C6DCCB
#D6E6D9
#E9F1EB

Shades

#67A274
#558B61
#46724F
#36593E
#273F2C
#17261A

Want a full 50-950 ramp with semantic roles? Generate design tokens from #81B18B.

How #81B18B Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#81B18B
Protanopia#AAAA8B
Protanomaly#9BAD8B
Deuteranopia#A3A38D
Deuteranomaly#97A98C
Tritanopia#87ADAD
Tritanomaly#85AEA0
Achromatopsia#A6A6A6

Test a full palette in the color blindness simulator.

Using #81B18B in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-81b18b: #81B18B;
CSS backgroundbackground-color: #81B18B;
Tailwind configcolors: { 'color-81b18b': '#81B18B' }
SwiftUIColor(red: 0.506, green: 0.694, blue: 0.545)
Android XML<color name="color_81b18b">#81B18B</color>
SVG fillfill="#81B18B"

More Green Colors

#81B18B sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#81B18B Frequently Asked Questions

What color is #81B18B?

#81B18B is a light green — rgb(129, 177, 139) in RGB and hsl(133, 24%, 60%) in HSL. It carries no registered color name of its own; the closest named color is Dark Sea Green (#8FBC8F), which is clearly related but distinguishable side by side at a CIE76 distance of 5.51.

What is the RGB value of #81B18B?

#81B18B is rgb(129, 177, 139) — red 129, green 177, and blue 139 on the 0-255 scale.

What is the CMYK value of #81B18B?

#81B18B converts to approximately cmyk(27%, 0%, 21%, 31%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #81B18B be black or white?

Black text is the more readable choice. #81B18B scores 2.44:1 against white and 8.6:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #81B18B as a CSS color keyword?

No. #81B18B is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is darkseagreen (#8FBC8F) at a CIE76 distance of 5.51, which is clearly related but distinguishable side by side.

Open #81B18B in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

Keep exploring: every green in the color library, the guide to shades of green, or the full color library.