#51D143#51D143

#51D143 is a light, highly saturated green. Relative luminance 0.478; OKLCH L 76.1% C 0.213 H 141.7°. Best body text is #000000 at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#51D143
RGB	rgb(81, 209, 67)
HSL	hsl(114, 61%, 54%)
HSV	hsv(114, 68%, 82%)
CMYK	cmyk(61.2%, 0%, 67.9%, 18%)
CIE-LAB	lab(74.67, -61.30, 57.61)
CIE-LCH	lch(74.67, 84.12, 136.78°)
OKLab	oklab(76.13% -0.1672 0.1321)
OKLCH	oklch(76.13% 0.213 141.7)
XYZ	xyz(27.2055, 47.7529, 13.0926)
Luminance	0.4776 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D143 #C343D1

analogous

#98D143 #51D143 #43D17C

triadic

#51D143 #4351D1 #D14351

tetradic

#51D143 #4398D1 #C343D1 #D17C43

square

#51D143 #4398D1 #C343D1 #D17C43

split-complementary

#51D143 #7C43D1 #D14398

monochromatic

#277B1E #37AD2A #51D143 #7FDD74 #ACE9A5

Accessibility & contrast

On white

1.99

#51D143 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.55

#51D143 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D143

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D143	#FFFFFF	#000000	##000000
##51D143	1.00	1.99	10.55	10.55
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.55	21.00	1.00	1.00
##000000	10.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BE2F

Deuteranopia (green-blind)

#C6B450

Tritanopia (blue-blind)

#3BCBB4

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #51d143;
/* rgb */ color: rgb(81, 209, 67);
/* oklch */ color: oklch(76.1% 0.213 141.7);

Tailwind

colors: {
  custom: {
    50: '#90e07e',
    500: '#51d143',
    950: '#000000',
  },
}

SCSS

$custom: #51d143;
$custom-light: #90e07e;
$custom-dark: #000000;

JSON

{
  "hex": "#51d143",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 67
  },
  "hsl": {
    "h": 114.085,
    "s": 60.684,
    "l": 54.118
  },
  "oklch": {
    "l": 0.76131,
    "c": 0.21307,
    "h": 141.7
  },
  "luminance": 0.47756
}

Semantic roles & 50–950 ramp

primary

#51D143

secondary

#D09AD6

accent

#44E4D4

background

#F9FDF8

surface

#F2FBEF

border

#CCD4CA

text

#0E150A

muted

#7E837C

Preview Lab

Preview with #51D143

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

Preview Lab → · Contrast checker → · Palette generator →