#51D561#51D561

#51D561 is a light, vivid green. Relative luminance 0.502; OKLCH L 77.5% C 0.195 H 145.5°. Best body text is #000000 at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#51D561
RGB	rgb(81, 213, 97)
HSL	hsl(127, 61%, 58%)
HSV	hsv(127, 62%, 84%)
CMYK	cmyk(62%, 0%, 54.5%, 16.5%)
CIE-LAB	lab(76.19, -59.44, 46.31)
CIE-LCH	lch(76.19, 75.35, 142.08°)
OKLab	oklab(77.48% -0.1608 0.1106)
OKLCH	oklch(77.48% 0.195 145.5)
XYZ	xyz(29.3434, 50.1980, 19.4498)
Luminance	0.5020 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D561 #D551C5

analogous

#83D551 #51D561 #51D5A3

triadic

#51D561 #6151D5 #D56151

tetradic

#51D561 #5183D5 #D551C5 #D5A351

square

#51D561 #5183D5 #D551C5 #D5A351

split-complementary

#51D561 #A351D5 #D55183

monochromatic

#218A2E #2DBC3F #51D561 #82E18E #B4EDBB

Accessibility & contrast

On white

1.90

#51D561 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.04

#51D561 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D561

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D561	#FFFFFF	#000000	##000000
##51D561	1.00	1.90	11.04	11.04
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.04	21.00	1.00	1.00
##000000	11.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C356

Deuteranopia (green-blind)

#C8B76A

Tritanopia (blue-blind)

#31D0BB

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #51d561;
/* rgb */ color: rgb(81, 213, 97);
/* oklch */ color: oklch(77.5% 0.195 145.5);

Tailwind

colors: {
  custom: {
    50: '#8fe391',
    500: '#51d561',
    950: '#000000',
  },
}

SCSS

$custom: #51d561;
$custom-light: #8fe391;
$custom-dark: #000000;

JSON

{
  "hex": "#51d561",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 97
  },
  "hsl": {
    "h": 127.273,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.7748,
    "c": 0.19519,
    "h": 145.5
  },
  "luminance": 0.50201
}

Semantic roles & 50–950 ramp

primary

#51D561

secondary

#903A86

accent

#44D1E4

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0E160D

muted

#7F847F

Preview Lab

Preview with #51D561

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

Preview Lab → · Contrast checker → · Palette generator →