#81C23B#81C23B

#81C23B is a light, vivid yellow-green. Relative luminance 0.436; OKLCH L 74.4% C 0.177 H 131.8°. Best body text is #000000 at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#81C23B
RGB	rgb(129, 194, 59)
HSL	hsl(89, 53%, 50%)
HSV	hsv(89, 70%, 76%)
CMYK	cmyk(33.5%, 0%, 69.6%, 23.9%)
CIE-LAB	lab(71.94, -41.91, 58.44)
CIE-LCH	lch(71.94, 71.91, 125.65°)
OKLab	oklab(74.39% -0.1181 0.1322)
OKLCH	oklch(74.39% 0.177 131.8)
XYZ	xyz(29.1341, 43.5654, 11.0108)
Luminance	0.4357 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81C23B #7C3BC2

analogous

#C2C03B #81C23B #3DC23B

triadic

#81C23B #3B81C2 #C23B81

tetradic

#81C23B #3BC2C0 #7C3BC2 #C23B3D

square

#81C23B #3BC2C0 #7C3BC2 #C23B3D

split-complementary

#81C23B #3B3DC2 #C03BC2

monochromatic

#43641E #62932D #81C23B #9FD169 #BDE098

Accessibility & contrast

On white

2.16

#81C23B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.71

#81C23B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81C23B

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81C23B	#FFFFFF	#000000	##000000
##81C23B	1.00	2.16	9.71	9.71
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.71	21.00	1.00	1.00
##000000	9.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAB426

Deuteranopia (green-blind)

#C1AF47

Tritanopia (blue-blind)

#83BAA7

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #81c23b;
/* rgb */ color: rgb(129, 194, 59);
/* oklch */ color: oklch(74.4% 0.177 131.8);

Tailwind

colors: {
  custom: {
    50: '#aad579',
    500: '#81c23b',
    950: '#000000',
  },
}

SCSS

$custom: #81c23b;
$custom-light: #aad579;
$custom-dark: #000000;

JSON

{
  "hex": "#81c23b",
  "rgb": {
    "r": 129,
    "g": 194,
    "b": 59
  },
  "hsl": {
    "h": 88.889,
    "s": 53.36,
    "l": 49.608
  },
  "oklch": {
    "l": 0.74393,
    "c": 0.17731,
    "h": 131.8
  },
  "luminance": 0.43566
}

Semantic roles & 50–950 ramp

primary

#81C23B

secondary

#AB8ECB

accent

#4BDD91

background

#FAFDF7

surface

#F4FAEE

border

#CED3C9

text

#101409

muted

#7F837B

Preview Lab

Preview with #81C23B

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

Preview Lab → · Contrast checker → · Palette generator →