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#81C21E Color

#81C21E is rgb(129, 194, 30) in RGB, hsl(84, 73%, 44%) in HSL, and about cmyk(34%, 0%, 85%, 24%) in CMYK. It has no registered color name of its own — the closest is Microsoft Green (#7DB700), very hard to tell apart at ΔE 4.62. Black text is the more readable choice on this background.

#81C21E
HEX#81C21E
RGBrgb(129, 194, 30)
HSLhsl(84, 73%, 44%)
HSVhsv(84, 85%, 76%)
CMYKcmyk(34%, 0%, 85%, 24%)
OKLCHoklch(74.2% 0.192 130.3)
LABlab(71.99% -38.44 66.09)
LCHlch(71.99% 76.46 120.18)

What #81C21E 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 #81C21E, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Microsoft Green#7DB700ΔE 4.62Yellow Green#9ACD32ΔE 7.19Sheen Green#8FD400ΔE 11.27Limerick#9DC209ΔE 11.84Vivid Lime Green#A6D608ΔE 14.31Green (RYB)#66B032ΔE 14.44

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

#81C21E Channel Values

How #81C21E 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 194 · B 308-bit channels as sent to the display
HSLH 84° · S 73% · L 44%Easiest model for building lighter and darker variants
HSVH 84° · S 85% · V 76%Matches the picker in most design tools
CMYKC 34% · M 0% · Y 85% · K 24%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.17:1 vs white · 9.67:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #81C21E 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 text2.17:1AA normal AA large AAA normal
TextBlack text9.67:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #81C21E in the contrast checker.

Colors That Go With #81C21E

Pairings derived from color-wheel relationships. The complementary color sits opposite #81C21E; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#81C21E
Complementary
#601EC2
Analogous
#C2B21E
Analogous
#2FC21E
Triadic
#1E81C2
Triadic
#C21E81
Split comp.
#1E2FC2
Split comp.
#B21EC2

Tints & Shades of #81C21E

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

#96DE2B
#A6E34A
#B7E86D
#C9EE91
#DAF3B4
#E9F8D3

Shades

#6FA81A
#609217
#4F7713
#3D5D0E
#2C420A
#1D2C07

Want a full 50-950 ramp with semantic roles? Generate design tokens from #81C21E.

How #81C21E 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#81C21E
Protanopia#B9B920
Protanomaly#A5BD1F
Deuteranopia#B0B029
Deuteranomaly#9FB725
Tritanopia#92B7B7
Tritanomaly#8BBB92
Achromatopsia#B0B0B0

Test a full palette in the color blindness simulator.

Using #81C21E in Code

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

CSS custom property--color-81c21e: #81C21E;
CSS backgroundbackground-color: #81C21E;
Tailwind configcolors: { 'color-81c21e': '#81C21E' }
SwiftUIColor(red: 0.506, green: 0.761, blue: 0.118)
Android XML<color name="color_81c21e">#81C21E</color>
SVG fillfill="#81C21E"

More Green Colors

#81C21E sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#81C21E Frequently Asked Questions

What color is #81C21E?

#81C21E is a mid-tone green — rgb(129, 194, 30) in RGB and hsl(84, 73%, 44%) in HSL. It carries no registered color name of its own; the closest named color is Microsoft Green (#7DB700), which is very hard to tell apart at a CIE76 distance of 4.62.

What is the RGB value of #81C21E?

#81C21E is rgb(129, 194, 30) — red 129, green 194, and blue 30 on the 0-255 scale.

What is the CMYK value of #81C21E?

#81C21E converts to approximately cmyk(34%, 0%, 85%, 24%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #81C21E be black or white?

Black text is the more readable choice. #81C21E scores 2.17:1 against white and 9.67:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #81C21E as a CSS color keyword?

No. #81C21E 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 yellowgreen (#9ACD32) at a CIE76 distance of 7.19, which is clearly related but distinguishable side by side.

Open #81C21E 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.