#81CA37#81CA37

#81CA37 is a light, vivid yellow-green. Relative luminance 0.472; OKLCH L 76.3% C 0.190 H 132.6°. Best body text is #000000 at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#81CA37
RGB	rgb(129, 202, 55)
HSL	hsl(90, 58%, 50%)
HSV	hsv(90, 73%, 79%)
CMYK	cmyk(36.1%, 0%, 72.8%, 20.8%)
CIE-LAB	lab(74.31, -45.59, 62.29)
CIE-LCH	lch(74.31, 77.19, 126.20°)
OKLab	oklab(76.32% -0.1284 0.1397)
OKLCH	oklch(76.32% 0.19 132.6)
XYZ	xyz(30.8630, 47.1827, 11.0947)
Luminance	0.4718 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81CA37 #8037CA

analogous

#CACA37 #81CA37 #37CA37

triadic

#81CA37 #3781CA #CA3781

tetradic

#81CA37 #37CACA #8037CA #CA3737

square

#81CA37 #37CACA #8037CA #CA3737

split-complementary

#81CA37 #3737CA #CA37CA

monochromatic

#446A1C #629B29 #81CA37 #9FD767 #BEE498

Accessibility & contrast

On white

2.01

#81CA37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.44

#81CA37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CA37

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81CA37	#FFFFFF	#000000	##000000
##81CA37	1.00	2.01	10.44	10.44
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.44	21.00	1.00	1.00
##000000	10.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BA1B

Deuteranopia (green-blind)

#C8B545

Tritanopia (blue-blind)

#82C2AE

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #81ca37;
/* rgb */ color: rgb(129, 202, 55);
/* oklch */ color: oklch(76.3% 0.190 132.6);

Tailwind

colors: {
  custom: {
    50: '#abda77',
    500: '#81ca37',
    950: '#000000',
  },
}

SCSS

$custom: #81ca37;
$custom-light: #abda77;
$custom-dark: #000000;

JSON

{
  "hex": "#81ca37",
  "rgb": {
    "r": 129,
    "g": 202,
    "b": 55
  },
  "hsl": {
    "h": 89.796,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.76318,
    "c": 0.18976,
    "h": 132.6
  },
  "luminance": 0.47184
}

Semantic roles & 50–950 ramp

primary

#81CA37

secondary

#AE8ECF

accent

#46E193

background

#FBFDF7

surface

#F6FBEE

border

#D0D4C9

text

#111509

muted

#80837B

Preview Lab

Preview with #81CA37

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

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