#51B940#51B940

#51B940 is a light, vivid green. Relative luminance 0.368; OKLCH L 69.9% C 0.186 H 141.0°. Best body text is #000000 at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#51B940
RGB	rgb(81, 185, 64)
HSL	hsl(112, 49%, 49%)
HSV	hsv(112, 65%, 73%)
CMYK	cmyk(56.2%, 0%, 65.4%, 27.5%)
CIE-LAB	lab(67.14, -52.92, 50.72)
CIE-LCH	lch(67.14, 73.30, 136.21°)
OKLab	oklab(69.91% -0.1447 0.1172)
OKLCH	oklch(69.91% 0.186 141)
XYZ	xyz(21.6667, 36.8156, 10.8138)
Luminance	0.3682 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B940 #A840B9

analogous

#8EB940 #51B940 #40B96C

triadic

#51B940 #4051B9 #B94051

tetradic

#51B940 #408EB9 #A840B9 #B96C40

square

#51B940 #408EB9 #A840B9 #B96C40

split-complementary

#51B940 #6C40B9 #B9408E

monochromatic

#295E21 #3D8C30 #51B940 #78CC6B #A1DB98

Accessibility & contrast

On white

2.51

#51B940 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.36

#51B940 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B940

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B940	#FFFFFF	#000000	##000000
##51B940	1.00	2.51	8.36	8.36
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.36	21.00	1.00	1.00
##000000	8.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEA931

Deuteranopia (green-blind)

#B0A04B

Tritanopia (blue-blind)

#43B3A0

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51b940;
/* rgb */ color: rgb(81, 185, 64);
/* oklch */ color: oklch(69.9% 0.186 141.0);

Tailwind

colors: {
  custom: {
    50: '#8ccf7a',
    500: '#51b940',
    950: '#000000',
  },
}

SCSS

$custom: #51b940;
$custom-light: #8ccf7a;
$custom-dark: #000000;

JSON

{
  "hex": "#51b940",
  "rgb": {
    "r": 81,
    "g": 185,
    "b": 64
  },
  "hsl": {
    "h": 111.57,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.69907,
    "c": 0.1862,
    "h": 141
  },
  "luminance": 0.36817
}

Semantic roles & 50–950 ramp

primary

#51B940

secondary

#BF8EC7

accent

#50D8C5

background

#F9FCF7

surface

#F1F9EE

border

#CBD2C9

text

#0D140A

muted

#7E827C

Preview Lab

Preview with #51B940

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

Preview Lab → · Contrast checker → · Palette generator →