#51D563#51D563

#51D563 is a light, vivid green. Relative luminance 0.502; OKLCH L 77.5% C 0.193 H 145.8°. Best body text is #000000 at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#51D563
RGB	rgb(81, 213, 99)
HSL	hsl(128, 61%, 58%)
HSV	hsv(128, 62%, 84%)
CMYK	cmyk(62%, 0%, 53.5%, 16.5%)
CIE-LAB	lab(76.21, -59.18, 45.40)
CIE-LCH	lch(76.21, 74.59, 142.51°)
OKLab	oklab(77.51% -0.1601 0.1087)
OKLCH	oklch(77.51% 0.193 145.8)
XYZ	xyz(29.4378, 50.2358, 19.9471)
Luminance	0.5024 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D563 #D551C3

analogous

#81D551 #51D563 #51D5A5

triadic

#51D563 #6351D5 #D56351

tetradic

#51D563 #5181D5 #D551C3 #D5A551

square

#51D563 #5181D5 #D551C3 #D5A551

split-complementary

#51D563 #A551D5 #D55181

monochromatic

#218A30 #2DBC41 #51D563 #82E18F #B4EDBB

Accessibility & contrast

On white

1.90

#51D563 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.05

#51D563 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D563

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D563	#FFFFFF	#000000	##000000
##51D563	1.00	1.90	11.05	11.05
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.05	21.00	1.00	1.00
##000000	11.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C359

Deuteranopia (green-blind)

#C8B86B

Tritanopia (blue-blind)

#30D0BB

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #51d563;
/* rgb */ color: rgb(81, 213, 99);
/* oklch */ color: oklch(77.5% 0.193 145.8);

Tailwind

colors: {
  custom: {
    50: '#8fe392',
    500: '#51d563',
    950: '#000000',
  },
}

SCSS

$custom: #51d563;
$custom-light: #8fe392;
$custom-dark: #000000;

JSON

{
  "hex": "#51d563",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 99
  },
  "hsl": {
    "h": 128.182,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.77506,
    "c": 0.19349,
    "h": 145.8
  },
  "luminance": 0.50239
}

Semantic roles & 50–950 ramp

primary

#51D563

secondary

#903A85

accent

#44CEE4

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0E160D

muted

#7F847F

Preview Lab

Preview with #51D563

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

Preview Lab → · Contrast checker → · Palette generator →