#81F00A

A color in the Green family

#81f00a is a color in the Green family: RGB(129, 240, 10), HSL(89°, 92%, 49%), CMYK(46%, 0%, 96%, 6%). Closest named color: lawngreen. Contrast is 1.46:1 on white and 14.4:1 on black. See shades, harmonies and color-blindness simulation.

Color Codes

HEX#81f00a
RGBrgb(129 240 10)
RGB (legacy)rgb(129, 240, 10)
RGB %rgb(51% 94% 4%)
HSLhsl(89 92% 49%)
HSV / HSBhsv(89, 96%, 94%)
HWBhwb(89 4% 6%)
CMYKcmyk(46%, 0%, 96%, 6%)
CIELAB (D50)lab(85.69 -55.8 79.83)
LCHlch(85.69 97.4 124.95)
OKLaboklab(0.8546 -0.1744 0.1753)
OKLCHoklch(0.8546 0.2473 134.85)
Decimal8515594

Properties

Color ToneGreen
Closest named colorlawngreen ΔE 3.2
Closest web-safe color#99ff00
Hue89°
Saturation (HSL / HSV)92% / 96%
Lightness (HSL)49%
Brightness or Value (HSV)94%
Luminance (Rec.601 / Rec.709)71% / 78%
Relative luminance (WCAG)0.6701
Red / Green / Blue129 / 240 / 10

WCAG 2.2 Contrast Ratio

On White (#ffffff)
1.46:1
AA Normal (4.5:1) · FailAA Large (3:1) · FailAAA Normal (7:1) · Fail
On Black (#000000)
14.40:1
AA Normal (4.5:1) · PassAA Large (3:1) · PassAAA Normal (7:1) · Pass
Aa Bb 123

APCA Contrast Lc (reference) — As text on white / black: Lc 21.4 / -82 · As background with white / black text: Lc -24.3 / 82.4

Lightness Scale (OKLCH 50–950)

Eleven steps that change only perceived lightness while keeping hue and chroma — ready to use as design-system color tokens.

Tints (mixed with white)

Shades (mixed with black)

Color Harmonies

Color Vision Deficiency Simulation

Estimated appearance of this color for people with color vision deficiencies (Machado 2009).

Similar Named Colors

Use in CSS

:root {
  --color-brand: #81f00a;
  --color-brand-oklch: oklch(85.46% 0.2473 134.85);
}
.text { color: var(--color-brand); }
.background { background-color: var(--color-brand); }
.border { border: 1px solid rgb(129 240 10 / 50%); }
/* Tailwind CSS */
<div class="bg-[#81f00a] text-[#81f00a] border-[#81f00a]">