#81CF3B#81CF3B

#81CF3B is a light, vivid yellow-green. Relative luminance 0.496; OKLCH L 77.6% C 0.194 H 133.4°. Best body text is #000000 at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#81CF3B
RGB	rgb(129, 207, 59)
HSL	hsl(92, 61%, 52%)
HSV	hsv(92, 71%, 81%)
CMYK	cmyk(37.7%, 0%, 71.5%, 18.8%)
CIE-LAB	lab(75.83, -47.41, 62.39)
CIE-LCH	lch(75.83, 78.36, 127.23°)
OKLab	oklab(77.57% -0.1331 0.1405)
OKLCH	oklch(77.57% 0.194 133.4)
XYZ	xyz(32.1550, 49.6070, 12.0177)
Luminance	0.4961 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81CF3B #893BCF

analogous

#CBCF3B #81CF3B #3BCF3F

triadic

#81CF3B #3B81CF #CF3B81

tetradic

#81CF3B #3BCBCF #893BCF #CF3F3B

square

#81CF3B #3BCBCF #893BCF #CF3F3B

split-complementary

#81CF3B #3F3BCF #CF3BCB

monochromatic

#45731C #63A528 #81CF3B #A1DB6C #C0E79D

Accessibility & contrast

On white

1.92

#81CF3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.92

#81CF3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81CF3B

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81CF3B	#FFFFFF	#000000	##000000
##81CF3B	1.00	1.92	10.92	10.92
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.92	21.00	1.00	1.00
##000000	10.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7BF21

Deuteranopia (green-blind)

#CDB949

Tritanopia (blue-blind)

#81C7B2

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #81cf3b;
/* rgb */ color: rgb(129, 207, 59);
/* oklch */ color: oklch(77.6% 0.194 133.4);

Tailwind

colors: {
  custom: {
    50: '#abde7a',
    500: '#81cf3b',
    950: '#000000',
  },
}

SCSS

$custom: #81cf3b;
$custom-light: #abde7a;
$custom-dark: #000000;

JSON

{
  "hex": "#81cf3b",
  "rgb": {
    "r": 129,
    "g": 207,
    "b": 59
  },
  "hsl": {
    "h": 91.622,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.77568,
    "c": 0.19351,
    "h": 133.4
  },
  "luminance": 0.49609
}

Semantic roles & 50–950 ramp

primary

#81CF3B

secondary

#B593D3

accent

#44E498

background

#FBFDF7

surface

#F6FBEE

border

#D0D4C9

text

#11150A

muted

#80837C

Preview Lab

Preview with #81CF3B

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

Preview Lab → · Contrast checker → · Palette generator →