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#81C599 Color

#81C599 is rgb(129, 197, 153) in RGB, hsl(141, 37%, 64%) in HSL, and about cmyk(35%, 0%, 22%, 23%) in CMYK. It has no registered color name of its own — the closest is Eton Blue (#96C8A2), clearly related but distinguishable side by side at ΔE 7.26. Black text is the more readable choice on this background.

#81C599
HEX#81C599
RGBrgb(129, 197, 153)
HSLhsl(141, 37%, 64%)
HSVhsv(141, 35%, 77%)
CMYKcmyk(35%, 0%, 22%, 23%)
OKLCHoklch(76.6% 0.094 155.2)
LABlab(74.09% -29.51 15.04)
LCHlch(74.09% 33.12 152.99)

What #81C599 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 #81C599, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Eton Blue#96C8A2ΔE 7.26Dark Sea Green#8FBC8FΔE 8.06Zeal#91E0B7ΔE 9.91Turquoise Green#A0D6B4ΔE 10.29Medium Aquamarine#66CDAAΔE 11.05Shiny Shamrock#5FA778ΔE 11.64

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

#81C599 Channel Values

How #81C599 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 197 · B 1538-bit channels as sent to the display
HSLH 141° · S 37% · L 64%Easiest model for building lighter and darker variants
HSVH 141° · S 35% · V 77%Matches the picker in most design tools
CMYKC 35% · M 0% · Y 22% · K 23%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.02:1 vs white · 10.38:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #81C599 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 text2.02:1AA normal AA large AAA normal
TextBlack text10.38:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #81C599 in the contrast checker.

Colors That Go With #81C599

Pairings derived from color-wheel relationships. The complementary color sits opposite #81C599; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#81C599
Complementary
#C581AD
Analogous
#8BC581
Analogous
#81C5BB
Triadic
#9981C5
Triadic
#C59981
Split comp.
#BB81C5
Split comp.
#C5818B

Tints & Shades of #81C599

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

#93CDA7
#A4D5B5
#B6DDC4
#C4E4CF
#D5ECDD
#E7F4EB

Shades

#62B780
#4CA46B
#3D8556
#306944
#224930
#152D1D

Want a full 50-950 ramp with semantic roles? Generate design tokens from #81C599.

How #81C599 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#81C599
Protanopia#BCBC99
Protanomaly#A7BF99
Deuteranopia#B2B29B
Deuteranomaly#A1BA9A
Tritanopia#89C0C0
Tritanomaly#86C2B2
Achromatopsia#B6B6B6

Test a full palette in the color blindness simulator.

Using #81C599 in Code

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

CSS custom property--color-81c599: #81C599;
CSS backgroundbackground-color: #81C599;
Tailwind configcolors: { 'color-81c599': '#81C599' }
SwiftUIColor(red: 0.506, green: 0.773, blue: 0.600)
Android XML<color name="color_81c599">#81C599</color>
SVG fillfill="#81C599"

More Green Colors

#81C599 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#81C599 Frequently Asked Questions

What color is #81C599?

#81C599 is a light green — rgb(129, 197, 153) in RGB and hsl(141, 37%, 64%) in HSL. It carries no registered color name of its own; the closest named color is Eton Blue (#96C8A2), which is clearly related but distinguishable side by side at a CIE76 distance of 7.26.

What is the RGB value of #81C599?

#81C599 is rgb(129, 197, 153) — red 129, green 197, and blue 153 on the 0-255 scale.

What is the CMYK value of #81C599?

#81C599 converts to approximately cmyk(35%, 0%, 22%, 23%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #81C599 be black or white?

Black text is the more readable choice. #81C599 scores 2.02:1 against white and 10.38:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #81C599 as a CSS color keyword?

No. #81C599 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 8.06, which is clearly related but distinguishable side by side.

Open #81C599 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.