#51DA37#51DA37

#51DA37 is a light, highly saturated green. Relative luminance 0.522; OKLCH L 78.3% C 0.230 H 140.9°. Best body text is #000000 at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#51DA37
RGB	rgb(81, 218, 55)
HSL	hsl(110, 69%, 54%)
HSV	hsv(110, 75%, 85%)
CMYK	cmyk(62.8%, 0%, 74.8%, 14.5%)
CIE-LAB	lab(77.38, -65.30, 64.72)
CIE-LCH	lch(77.38, 91.94, 135.25°)
OKLab	oklab(78.35% -0.1787 0.1454)
OKLCH	oklch(78.35% 0.23 140.9)
XYZ	xyz(29.1529, 52.1651, 12.1462)
Luminance	0.5217 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DA37 #C037DA

analogous

#A3DA37 #51DA37 #37DA6E

triadic

#51DA37 #3751DA #DA3751

tetradic

#51DA37 #37A3DA #C037DA #DA6E37

square

#51DA37 #37A3DA #C037DA #DA6E37

split-complementary

#51DA37 #6E37DA #DA37A3

monochromatic

#287F18 #38B321 #51DA37 #7EE46B #ABED9E

Accessibility & contrast

On white

1.84

#51DA37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.43

#51DA37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DA37

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DA37	#FFFFFF	#000000	##000000
##51DA37	1.00	1.84	11.43	11.43
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.43	21.00	1.00	1.00
##000000	11.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C612

Deuteranopia (green-blind)

#CFBB49

Tritanopia (blue-blind)

#3AD3BB

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #51da37;
/* rgb */ color: rgb(81, 218, 55);
/* oklch */ color: oklch(78.3% 0.230 140.9);

Tailwind

colors: {
  custom: {
    50: '#92e779',
    500: '#51da37',
    950: '#000000',
  },
}

SCSS

$custom: #51da37;
$custom-light: #92e779;
$custom-dark: #000000;

JSON

{
  "hex": "#51da37",
  "rgb": {
    "r": 81,
    "g": 218,
    "b": 55
  },
  "hsl": {
    "h": 110.429,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.78348,
    "c": 0.23036,
    "h": 140.9
  },
  "luminance": 0.52168
}

Semantic roles & 50–950 ramp

primary

#51DA37

secondary

#782F86

accent

#3CECD0

background

#FCFEFB

surface

#F5FDF2

border

#CFD5CC

text

#0E160A

muted

#7F847D

Preview Lab

Preview with #51DA37

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

Preview Lab → · Contrast checker → · Palette generator →