#81C040#81C040

#81C040 is a light, vivid yellow-green. Relative luminance 0.427; OKLCH L 73.9% C 0.171 H 131.9°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#81C040
RGB	rgb(129, 192, 64)
HSL	hsl(90, 50%, 50%)
HSV	hsv(90, 67%, 75%)
CMYK	cmyk(32.8%, 0%, 66.7%, 24.7%)
CIE-LAB	lab(71.38, -40.68, 55.89)
CIE-LCH	lch(71.38, 69.13, 126.05°)
OKLab	oklab(73.95% -0.1144 0.1276)
OKLCH	oklch(73.95% 0.171 131.9)
XYZ	xyz(28.8280, 42.7355, 11.5794)
Luminance	0.4274 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81C040 #7F40C0

analogous

#C0BF40 #81C040 #41C040

triadic

#81C040 #4081C0 #C04081

tetradic

#81C040 #40C0BF #7F40C0 #C04041

square

#81C040 #40C0BF #7F40C0 #C04041

split-complementary

#81C040 #4041C0 #BF40C0

monochromatic

#436421 #629230 #81C040 #9FCF6E #BEDE9C

Accessibility & contrast

On white

2.20

#81C040 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.55

#81C040 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81C040

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81C040	#FFFFFF	#000000	##000000
##81C040	1.00	2.20	9.55	9.55
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.55	21.00	1.00	1.00
##000000	9.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B22E

Deuteranopia (green-blind)

#BFAD4B

Tritanopia (blue-blind)

#83B8A6

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #81c040;
/* rgb */ color: rgb(129, 192, 64);
/* oklch */ color: oklch(73.9% 0.171 131.9);

Tailwind

colors: {
  custom: {
    50: '#aad37b',
    500: '#81c040',
    950: '#000000',
  },
}

SCSS

$custom: #81c040;
$custom-light: #aad37b;
$custom-dark: #000000;

JSON

{
  "hex": "#81c040",
  "rgb": {
    "r": 129,
    "g": 192,
    "b": 64
  },
  "hsl": {
    "h": 89.531,
    "s": 50.394,
    "l": 50.196
  },
  "oklch": {
    "l": 0.73947,
    "c": 0.17132,
    "h": 131.9
  },
  "luminance": 0.42737
}

Semantic roles & 50–950 ramp

primary

#81C040

secondary

#AD91CB

accent

#4EDA93

background

#FAFDF7

surface

#F4FAEE

border

#CED3C9

text

#10140A

muted

#7F837C

Preview Lab

Preview with #81C040

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →