#81CA39#81CA39

#81CA39 is a light, vivid yellow-green. Relative luminance 0.472; OKLCH L 76.3% C 0.189 H 132.7°. Best body text is #000000 at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#81CA39
RGB	rgb(129, 202, 57)
HSL	hsl(90, 58%, 51%)
HSV	hsv(90, 72%, 79%)
CMYK	cmyk(36.1%, 0%, 71.8%, 20.8%)
CIE-LAB	lab(74.32, -45.46, 61.59)
CIE-LCH	lch(74.32, 76.55, 126.43°)
OKLab	oklab(76.33% -0.1279 0.1385)
OKLCH	oklch(76.33% 0.189 132.7)
XYZ	xyz(30.9119, 47.2023, 11.3523)
Luminance	0.4720 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81CA39 #8239CA

analogous

#C9CA39 #81CA39 #39CA39

triadic

#81CA39 #3981CA #CA3981

tetradic

#81CA39 #39C9CA #8239CA #CA3939

square

#81CA39 #39C9CA #8239CA #CA3939

split-complementary

#81CA39 #3939CA #CA39C9

monochromatic

#446C1D #639C2A #81CA39 #A0D769 #BEE49A

Accessibility & contrast

On white

2.01

#81CA39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.44

#81CA39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CA39

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81CA39	#FFFFFF	#000000	##000000
##81CA39	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)

#D2BA1F

Deuteranopia (green-blind)

#C8B547

Tritanopia (blue-blind)

#82C2AE

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #81ca39;
/* rgb */ color: rgb(129, 202, 57);
/* oklch */ color: oklch(76.3% 0.189 132.7);

Tailwind

colors: {
  custom: {
    50: '#abda78',
    500: '#81ca39',
    950: '#000000',
  },
}

SCSS

$custom: #81ca39;
$custom-light: #abda78;
$custom-dark: #000000;

JSON

{
  "hex": "#81ca39",
  "rgb": {
    "r": 129,
    "g": 202,
    "b": 57
  },
  "hsl": {
    "h": 90.207,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.76332,
    "c": 0.18857,
    "h": 132.7
  },
  "luminance": 0.47204
}

Semantic roles & 50–950 ramp

primary

#81CA39

secondary

#B08FD0

accent

#47E194

background

#FAFDF7

surface

#F5FBEE

border

#CFD4C9

text

#11150A

muted

#80837C

Preview Lab

Preview with #81CA39

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

Preview Lab → · Contrast checker → · Palette generator →