#51D031#51D031

#51D031 is a light, highly saturated green. Relative luminance 0.471; OKLCH L 75.7% C 0.222 H 140.2°. Best body text is #000000 at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#51D031
RGB	rgb(81, 208, 49)
HSL	hsl(108, 63%, 50%)
HSV	hsv(108, 76%, 82%)
CMYK	cmyk(61.1%, 0%, 76.4%, 18.4%)
CIE-LAB	lab(74.24, -62.32, 63.59)
CIE-LCH	lch(74.24, 89.04, 134.42°)
OKLab	oklab(75.74% -0.1709 0.1423)
OKLCH	oklch(75.74% 0.222 140.2)
XYZ	xyz(26.5024, 47.0803, 10.5959)
Luminance	0.4708 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D031 #B031D0

analogous

#A0D031 #51D031 #31D061

triadic

#51D031 #3151D0 #D03151

tetradic

#51D031 #31A0D0 #B031D0 #D06131

square

#51D031 #31A0D0 #B031D0 #D06131

split-complementary

#51D031 #6131D0 #D031A0

monochromatic

#2A6E19 #3D9F24 #51D031 #7BDB63 #A5E795

Accessibility & contrast

On white

2.02

#51D031 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.42

#51D031 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D031

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D031	#FFFFFF	#000000	##000000
##51D031	1.00	2.02	10.42	10.42
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.42	21.00	1.00	1.00
##000000	10.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BD05

Deuteranopia (green-blind)

#C6B343

Tritanopia (blue-blind)

#3FC9B2

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #51d031;
/* rgb */ color: rgb(81, 208, 49);
/* oklch */ color: oklch(75.7% 0.222 140.2);

Tailwind

colors: {
  custom: {
    50: '#91df75',
    500: '#51d031',
    950: '#000000',
  },
}

SCSS

$custom: #51d031;
$custom-light: #91df75;
$custom-dark: #000000;

JSON

{
  "hex": "#51d031",
  "rgb": {
    "r": 81,
    "g": 208,
    "b": 49
  },
  "hsl": {
    "h": 107.925,
    "s": 62.846,
    "l": 50.392
  },
  "oklch": {
    "l": 0.7574,
    "c": 0.22239,
    "h": 140.2
  },
  "luminance": 0.47083
}

Semantic roles & 50–950 ramp

primary

#51D031

secondary

#C48BD2

accent

#42E6C5

background

#F9FDF7

surface

#F2FBED

border

#CCD4C8

text

#0E1509

muted

#7E837B

Preview Lab

Preview with #51D031

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

Preview Lab → · Contrast checker → · Palette generator →