#51C855#51C855

#51C855 is a light, vivid green. Relative luminance 0.437; OKLCH L 74.0% C 0.189 H 143.9°. Best body text is #000000 at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#51C855
RGB	rgb(81, 200, 85)
HSL	hsl(122, 52%, 55%)
HSV	hsv(122, 60%, 78%)
CMYK	cmyk(59.5%, 0%, 57.5%, 21.6%)
CIE-LAB	lab(72.04, -56.20, 46.96)
CIE-LCH	lch(72.04, 73.24, 140.12°)
OKLab	oklab(74.01% -0.1525 0.1111)
OKLCH	oklch(74.01% 0.189 143.9)
XYZ	xyz(25.6858, 43.7114, 15.6761)
Luminance	0.4371 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C855 #C851C4

analogous

#88C851 #51C855 #51C891

triadic

#51C855 #5551C8 #C85551

tetradic

#51C855 #5188C8 #C851C4 #C89151

square

#51C855 #5188C8 #C851C4 #C89151

split-complementary

#51C855 #9151C8 #C85188

monochromatic

#267929 #35A739 #51C855 #80D782 #AEE5B0

Accessibility & contrast

On white

2.16

#51C855 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.74

#51C855 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C855

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C855	#FFFFFF	#000000	##000000
##51C855	1.00	2.16	9.74	9.74
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.74	21.00	1.00	1.00
##000000	9.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCB749

Deuteranopia (green-blind)

#BDAD5E

Tritanopia (blue-blind)

#3AC3AF

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51c855;
/* rgb */ color: rgb(81, 200, 85);
/* oklch */ color: oklch(74.0% 0.189 143.9);

Tailwind

colors: {
  custom: {
    50: '#8eda88',
    500: '#51c855',
    950: '#000000',
  },
}

SCSS

$custom: #51c855;
$custom-light: #8eda88;
$custom-dark: #000000;

JSON

{
  "hex": "#51c855",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 85
  },
  "hsl": {
    "h": 122.017,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.74009,
    "c": 0.18871,
    "h": 143.9
  },
  "luminance": 0.43714
}

Semantic roles & 50–950 ramp

primary

#51C855

secondary

#D3A1D2

accent

#4CD7DB

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0D150C

muted

#7E837D

Preview Lab

Preview with #51C855

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

Preview Lab → · Contrast checker → · Palette generator →