#81F23B#81F23B

#81F23B is a very light, highly saturated yellow-green. Relative luminance 0.685; OKLCH L 86.1% C 0.235 H 136.4°. Best body text is #000000 at 14.70:1 contrast (WCAG AA passes).

Color values

HEX	#81F23B
RGB	rgb(129, 242, 59)
HSL	hsl(97, 88%, 59%)
HSV	hsv(97, 76%, 95%)
CMYK	cmyk(46.7%, 0%, 75.6%, 5.1%)
CIE-LAB	lab(86.25, -61.12, 72.62)
CIE-LCH	lch(86.25, 94.92, 130.08°)
OKLab	oklab(86.11% -0.1701 0.1619)
OKLCH	oklch(86.11% 0.235 136.4)
XYZ	xyz(41.5937, 68.4844, 15.1639)
Luminance	0.6849 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81F23B #AC3BF2

analogous

#DDF23B #81F23B #3BF251

triadic

#81F23B #3B81F2 #F23B81

tetradic

#81F23B #3BDDF2 #AC3BF2 #F2513B

square

#81F23B #3BDDF2 #AC3BF2 #F2513B

split-complementary

#81F23B #513BF2 #F23BDD

monochromatic

#47A70B #5FE10F #81F23B #A6F674 #CBFAAE

Accessibility & contrast

On white

1.43

#81F23B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.70

#81F23B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81F23B

14.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81F23B	#FFFFFF	#000000	##000000
##81F23B	1.00	1.43	14.70	14.70
#FFFFFF	1.43	1.00	21.00	21.00
#000000	14.70	21.00	1.00	1.00
##000000	14.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FADE08

Deuteranopia (green-blind)

#ECD44F

Tritanopia (blue-blind)

#7BE9D0

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #81f23b;
/* rgb */ color: rgb(129, 242, 59);
/* oklch */ color: oklch(86.1% 0.235 136.4);

Tailwind

colors: {
  custom: {
    50: '#aff77e',
    500: '#81f23b',
    950: '#000000',
  },
}

SCSS

$custom: #81f23b;
$custom-light: #aff77e;
$custom-dark: #000000;

JSON

{
  "hex": "#81f23b",
  "rgb": {
    "r": 129,
    "g": 242,
    "b": 59
  },
  "hsl": {
    "h": 97.049,
    "s": 87.56,
    "l": 59.02
  },
  "oklch": {
    "l": 0.86111,
    "c": 0.23482,
    "h": 136.4
  },
  "luminance": 0.68487
}

Semantic roles & 50–950 ramp

primary

#81F23B

secondary

#7828A9

accent

#2AFEAD

background

#FDFFFB

surface

#F8FFF2

border

#D1D7CC

text

#11170B

muted

#81857E

Preview Lab

Preview with #81F23B

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

Preview Lab → · Contrast checker → · Palette generator →