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#81EE99 Color

#81EE99 is rgb(129, 238, 153) in RGB, hsl(133, 76%, 72%) in HSL, and about cmyk(46%, 0%, 36%, 7%) in CMYK. It has no registered color name of its own — the closest is Light Green (#90EE90), clearly related but distinguishable side by side at ΔE 6.23. Black text is the more readable choice on this background.

#81EE99
HEX#81EE99
RGBrgb(129, 238, 153)
HSLhsl(133, 76%, 72%)
HSVhsv(133, 46%, 93%)
CMYKcmyk(46%, 0%, 36%, 7%)
OKLCHoklch(86.3% 0.155 149.3)
LABlab(86.06% -46.26 31.10)
LCHlch(86.06% 55.74 146.08)

What #81EE99 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 #81EE99, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Light Green#90EE90ΔE 6.23Pale Green#98FB98ΔE 8.44Very Light Malachite Green#64E986ΔE 9.88Mint#98FF98ΔE 10.17Pastel Green#77DD77ΔE 10.86Android Green#3DDC84ΔE 13.35

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

#81EE99 Channel Values

How #81EE99 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 238 · B 1538-bit channels as sent to the display
HSLH 133° · S 76% · L 72%Easiest model for building lighter and darker variants
HSVH 133° · S 46% · V 93%Matches the picker in most design tools
CMYKC 46% · M 0% · Y 36% · K 7%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.44:1 vs white · 14.62:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #81EE99 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 text1.44:1AA normal AA large AAA normal
TextBlack text14.62:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #81EE99 in the contrast checker.

Colors That Go With #81EE99

Pairings derived from color-wheel relationships. The complementary color sits opposite #81EE99; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#81EE99
Complementary
#EE81D6
Analogous
#A0EE81
Analogous
#81EECF
Triadic
#9981EE
Triadic
#EE9981
Split comp.
#CF81EE
Split comp.
#EE81A0

Tints & Shades of #81EE99

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

#93F0A7
#A1F2B2
#B3F5C1
#C5F7D0
#D7F9DE
#E4FBE9

Shades

#54E874
#2CE254
#1AC13E
#149430
#0E6721
#093F14

Want a full 50-950 ramp with semantic roles? Generate design tokens from #81EE99.

How #81EE99 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#81EE99
Protanopia#E0E09A
Protanomaly#C1E699
Deuteranopia#D2D29D
Deuteranomaly#B7DE9B
Tritanopia#92E5E5
Tritanomaly#8CE9CB
Achromatopsia#D7D7D7

Test a full palette in the color blindness simulator.

Using #81EE99 in Code

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

CSS custom property--color-81ee99: #81EE99;
CSS backgroundbackground-color: #81EE99;
Tailwind configcolors: { 'color-81ee99': '#81EE99' }
SwiftUIColor(red: 0.506, green: 0.933, blue: 0.600)
Android XML<color name="color_81ee99">#81EE99</color>
SVG fillfill="#81EE99"

More Green Colors

#81EE99 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#81EE99 Frequently Asked Questions

What color is #81EE99?

#81EE99 is a light green — rgb(129, 238, 153) in RGB and hsl(133, 76%, 72%) in HSL. It carries no registered color name of its own; the closest named color is Light Green (#90EE90), which is clearly related but distinguishable side by side at a CIE76 distance of 6.23.

What is the RGB value of #81EE99?

#81EE99 is rgb(129, 238, 153) — red 129, green 238, and blue 153 on the 0-255 scale.

What is the CMYK value of #81EE99?

#81EE99 converts to approximately cmyk(46%, 0%, 36%, 7%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #81EE99 be black or white?

Black text is the more readable choice. #81EE99 scores 1.44:1 against white and 14.62:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #81EE99 as a CSS color keyword?

No. #81EE99 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 lightgreen (#90EE90) at a CIE76 distance of 6.23, which is clearly related but distinguishable side by side.

Open #81EE99 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.