#51DD57#51DD57

#51DD57 is a light, highly saturated green. Relative luminance 0.541; OKLCH L 79.4% C 0.213 H 143.9°. Best body text is #000000 at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#51DD57
RGB	rgb(81, 221, 87)
HSL	hsl(123, 67%, 59%)
HSV	hsv(123, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 60.6%, 13.3%)
CIE-LAB	lab(78.55, -63.48, 53.58)
CIE-LCH	lch(78.55, 83.07, 139.83°)
OKLab	oklab(79.39% -0.1721 0.1256)
OKLCH	oklch(79.39% 0.213 143.9)
XYZ	xyz(30.9682, 54.1473, 17.8344)
Luminance	0.5415 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD57 #DD51D7

analogous

#91DD51 #51DD57 #51DD9D

triadic

#51DD57 #5751DD #DD5751

tetradic

#51DD57 #5191DD #DD51D7 #DD9D51

square

#51DD57 #5191DD #DD51D7 #DD9D51

split-complementary

#51DD57 #9D51DD #DD5191

monochromatic

#1D9623 #27C92E #51DD57 #84E788 #B7F1BA

Accessibility & contrast

On white

1.78

#51DD57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.83

#51DD57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD57

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD57	#FFFFFF	#000000	##000000
##51DD57	1.00	1.78	11.83	11.83
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.83	21.00	1.00	1.00
##000000	11.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1CA48

Deuteranopia (green-blind)

#D0BE62

Tritanopia (blue-blind)

#31D7C0

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51dd57;
/* rgb */ color: rgb(81, 221, 87);
/* oklch */ color: oklch(79.4% 0.213 143.9);

Tailwind

colors: {
  custom: {
    50: '#91e98b',
    500: '#51dd57',
    950: '#000000',
  },
}

SCSS

$custom: #51dd57;
$custom-light: #91e98b;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd57",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 87
  },
  "hsl": {
    "h": 122.571,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.79392,
    "c": 0.21307,
    "h": 143.9
  },
  "luminance": 0.5415
}

Semantic roles & 50–950 ramp

primary

#51DD57

secondary

#9B3896

accent

#3EE3EA

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51DD57

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

Preview Lab → · Contrast checker → · Palette generator →