#51E443#51E443

#51E443 is a light, highly saturated green. Relative luminance 0.576; OKLCH L 81.0% C 0.235 H 141.9°. Best body text is #000000 at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#51E443
RGB	rgb(81, 228, 67)
HSL	hsl(115, 75%, 58%)
HSV	hsv(115, 71%, 89%)
CMYK	cmyk(64.5%, 0%, 70.6%, 10.6%)
CIE-LAB	lab(80.54, -67.74, 63.75)
CIE-LCH	lch(80.54, 93.02, 136.74°)
OKLab	oklab(80.99% -0.1846 0.1449)
OKLCH	oklch(80.99% 0.235 141.9)
XYZ	xyz(32.1481, 57.6381, 14.7402)
Luminance	0.5764 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E443 #D643E4

analogous

#A1E443 #51E443 #43E486

triadic

#51E443 #4351E4 #E44351

tetradic

#51E443 #43A1E4 #D643E4 #E48643

square

#51E443 #43A1E4 #D643E4 #E48643

split-complementary

#51E443 #8643E4 #E443A1

monochromatic

#219716 #2DCC1D #51E443 #83EC79 #B4F3AE

Accessibility & contrast

On white

1.68

#51E443 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.53

#51E443 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E443

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E443	#FFFFFF	#000000	##000000
##51E443	1.00	1.68	12.53	12.53
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.53	21.00	1.00	1.00
##000000	12.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9CF28

Deuteranopia (green-blind)

#D8C353

Tritanopia (blue-blind)

#34DDC4

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e443;
/* rgb */ color: rgb(81, 228, 67);
/* oklch */ color: oklch(81.0% 0.235 141.9);

Tailwind

colors: {
  custom: {
    50: '#93ee80',
    500: '#51e443',
    950: '#000000',
  },
}

SCSS

$custom: #51e443;
$custom-light: #93ee80;
$custom-dark: #000000;

JSON

{
  "hex": "#51e443",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 67
  },
  "hsl": {
    "h": 114.783,
    "s": 74.884,
    "l": 57.843
  },
  "oklch": {
    "l": 0.80986,
    "c": 0.23472,
    "h": 141.9
  },
  "luminance": 0.57641
}

Semantic roles & 50–950 ramp

primary

#51E443

secondary

#92309B

accent

#36F2E1

background

#FCFFFB

surface

#F5FEF2

border

#CFD6CC

text

#0F160B

muted

#80857E

Preview Lab

Preview with #51E443

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

Preview Lab → · Contrast checker → · Palette generator →