#51C856#51C856

#51C856 is a light, vivid green. Relative luminance 0.437; OKLCH L 74.0% C 0.188 H 144.1°. Best body text is #000000 at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#51C856
RGB	rgb(81, 200, 86)
HSL	hsl(123, 52%, 55%)
HSV	hsv(123, 60%, 78%)
CMYK	cmyk(59.5%, 0%, 57%, 21.6%)
CIE-LAB	lab(72.05, -56.08, 46.51)
CIE-LCH	lch(72.05, 72.86, 140.33°)
OKLab	oklab(74.02% -0.1521 0.1102)
OKLCH	oklch(74.02% 0.188 144.1)
XYZ	xyz(25.7258, 43.7274, 15.8868)
Luminance	0.4373 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C856 #C851C3

analogous

#87C851 #51C856 #51C891

triadic

#51C856 #5651C8 #C85651

tetradic

#51C856 #5187C8 #C851C3 #C89151

square

#51C856 #5187C8 #C851C3 #C89151

split-complementary

#51C856 #9151C8 #C85187

monochromatic

#26792A #35A73A #51C856 #80D783 #AEE5B0

Accessibility & contrast

On white

2.15

#51C856 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.75

#51C856 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C856

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C856	#FFFFFF	#000000	##000000
##51C856	1.00	2.15	9.75	9.75
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.75	21.00	1.00	1.00
##000000	9.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCB74B

Deuteranopia (green-blind)

#BDAD5F

Tritanopia (blue-blind)

#3AC3AF

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51c856;
/* rgb */ color: rgb(81, 200, 86);
/* oklch */ color: oklch(74.0% 0.188 144.1);

Tailwind

colors: {
  custom: {
    50: '#8eda89',
    500: '#51c856',
    950: '#000000',
  },
}

SCSS

$custom: #51c856;
$custom-light: #8eda89;
$custom-dark: #000000;

JSON

{
  "hex": "#51c856",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 86
  },
  "hsl": {
    "h": 122.521,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.74022,
    "c": 0.18788,
    "h": 144.1
  },
  "luminance": 0.4373
}

Semantic roles & 50–950 ramp

primary

#51C856

secondary

#D3A1D1

accent

#4CD5DB

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0D150C

muted

#7E837D

Preview Lab

Preview with #51C856

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

Preview Lab → · Contrast checker → · Palette generator →