#51BF37#51BF37

#51BF37 is a light, vivid green. Relative luminance 0.393; OKLCH L 71.4% C 0.200 H 140.2°. Best body text is #000000 at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#51BF37
RGB	rgb(81, 191, 55)
HSL	hsl(109, 55%, 48%)
HSV	hsv(109, 71%, 75%)
CMYK	cmyk(57.6%, 0%, 71.2%, 25.1%)
CIE-LAB	lab(68.96, -55.92, 56.24)
CIE-LCH	lch(68.96, 79.31, 134.83°)
OKLab	oklab(71.39% -0.1533 0.1277)
OKLCH	oklch(71.39% 0.2 140.2)
XYZ	xyz(22.7127, 39.2848, 9.9995)
Luminance	0.3929 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF37 #A537BF

analogous

#95BF37 #51BF37 #37BF61

triadic

#51BF37 #3751BF #BF3751

tetradic

#51BF37 #3795BF #A537BF #BF6137

square

#51BF37 #3795BF #A537BF #BF6137

split-complementary

#51BF37 #6137BF #BF3795

monochromatic

#29601C #3D8F29 #51BF37 #77D262 #A0DF91

Accessibility & contrast

On white

2.37

#51BF37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.86

#51BF37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF37

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF37	#FFFFFF	#000000	##000000
##51BF37	1.00	2.37	8.86	8.86
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.86	21.00	1.00	1.00
##000000	8.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AE20

Deuteranopia (green-blind)

#B6A544

Tritanopia (blue-blind)

#43B9A4

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #51bf37;
/* rgb */ color: rgb(81, 191, 55);
/* oklch */ color: oklch(71.4% 0.200 140.2);

Tailwind

colors: {
  custom: {
    50: '#8dd376',
    500: '#51bf37',
    950: '#000000',
  },
}

SCSS

$custom: #51bf37;
$custom-light: #8dd376;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf37",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 55
  },
  "hsl": {
    "h": 108.529,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.71385,
    "c": 0.19956,
    "h": 140.2
  },
  "luminance": 0.39287
}

Semantic roles & 50–950 ramp

primary

#51BF37

secondary

#BD88CA

accent

#49DFC2

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0D1409

muted

#7E837B

Preview Lab

Preview with #51BF37

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

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