#51D451#51D451

#51D451 is a light, highly saturated green. Relative luminance 0.494; OKLCH L 77.0% C 0.207 H 143.2°. Best body text is #000000 at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#51D451
RGB	rgb(81, 212, 81)
HSL	hsl(120, 60%, 57%)
HSV	hsv(120, 62%, 83%)
CMYK	cmyk(61.8%, 0%, 61.8%, 16.9%)
CIE-LAB	lab(75.72, -60.98, 52.98)
CIE-LCH	lch(75.72, 80.78, 139.02°)
OKLab	oklab(77.04% -0.1656 0.1237)
OKLCH	oklch(77.04% 0.207 143.2)
XYZ	xyz(28.4204, 49.4276, 15.8257)
Luminance	0.4943 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D451 #D451D4

analogous

#93D451 #51D451 #51D493

triadic

#51D451 #5151D4 #D45151

tetradic

#51D451 #5193D4 #D451D4 #D49351

square

#51D451 #5193D4 #D451D4 #D49351

split-complementary

#51D451 #9351D4 #D45193

monochromatic

#228922 #2EBA2E #51D451 #82E082 #B3ECB3

Accessibility & contrast

On white

1.93

#51D451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.89

#51D451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D451

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D451	#FFFFFF	#000000	##000000
##51D451	1.00	1.93	10.89	10.89
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.89	21.00	1.00	1.00
##000000	10.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C142

Deuteranopia (green-blind)

#C8B65C

Tritanopia (blue-blind)

#37CEB8

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51d451;
/* rgb */ color: rgb(81, 212, 81);
/* oklch */ color: oklch(77.0% 0.207 143.2);

Tailwind

colors: {
  custom: {
    50: '#90e286',
    500: '#51d451',
    950: '#000000',
  },
}

SCSS

$custom: #51d451;
$custom-light: #90e286;
$custom-dark: #000000;

JSON

{
  "hex": "#51d451",
  "rgb": {
    "r": 81,
    "g": 212,
    "b": 81
  },
  "hsl": {
    "h": 120,
    "s": 60.369,
    "l": 57.451
  },
  "oklch": {
    "l": 0.77035,
    "c": 0.20675,
    "h": 143.2
  },
  "luminance": 0.4943
}

Semantic roles & 50–950 ramp

primary

#51D451

secondary

#DBA6DB

accent

#44E4E4

background

#F9FEF8

surface

#F2FCF0

border

#CCD5CB

text

#0E150B

muted

#7E847C

Preview Lab

Preview with #51D451

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

Preview Lab → · Contrast checker → · Palette generator →