#51D331#51D331

#51D331 is a light, highly saturated green. Relative luminance 0.486; OKLCH L 76.5% C 0.226 H 140.3°. Best body text is #000000 at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#51D331
RGB	rgb(81, 211, 49)
HSL	hsl(108, 65%, 51%)
HSV	hsv(108, 77%, 83%)
CMYK	cmyk(61.6%, 0%, 76.8%, 17.3%)
CIE-LAB	lab(75.17, -63.34, 64.50)
CIE-LCH	lch(75.17, 90.40, 134.48°)
OKLab	oklab(76.51% -0.1737 0.1441)
OKLCH	oklch(76.51% 0.226 140.3)
XYZ	xyz(27.2407, 48.5570, 10.8420)
Luminance	0.4856 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D331 #B331D3

analogous

#A2D331 #51D331 #31D362

triadic

#51D331 #3151D3 #D33151

tetradic

#51D331 #31A2D3 #B331D3 #D36231

square

#51D331 #31A2D3 #B331D3 #D36231

split-complementary

#51D331 #6231D3 #D331A2

monochromatic

#2A7118 #3CA423 #51D331 #7CDE63 #A6E996

Accessibility & contrast

On white

1.96

#51D331 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.71

#51D331 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D331

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D331	#FFFFFF	#000000	##000000
##51D331	1.00	1.96	10.71	10.71
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.71	21.00	1.00	1.00
##000000	10.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C002

Deuteranopia (green-blind)

#C9B543

Tritanopia (blue-blind)

#3ECCB5

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #51d331;
/* rgb */ color: rgb(81, 211, 49);
/* oklch */ color: oklch(76.5% 0.226 140.3);

Tailwind

colors: {
  custom: {
    50: '#91e275',
    500: '#51d331',
    950: '#000000',
  },
}

SCSS

$custom: #51d331;
$custom-light: #91e275;
$custom-dark: #000000;

JSON

{
  "hex": "#51d331",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 49
  },
  "hsl": {
    "h": 108.148,
    "s": 64.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.76513,
    "c": 0.2257,
    "h": 140.3
  },
  "luminance": 0.4856
}

Semantic roles & 50–950 ramp

primary

#51D331

secondary

#C68CD4

accent

#40E8C7

background

#F9FDF7

surface

#F2FBED

border

#CCD4C8

text

#0E1509

muted

#7E837B

Preview Lab

Preview with #51D331

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

Preview Lab → · Contrast checker → · Palette generator →