#51B372#51B372

#51B372 is a light, vivid green. Relative luminance 0.352; OKLCH L 69.1% C 0.133 H 152.3°. Best body text is #000000 at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#51B372
RGB	rgb(81, 179, 114)
HSL	hsl(140, 39%, 51%)
HSV	hsv(140, 55%, 70%)
CMYK	cmyk(54.7%, 0%, 36.3%, 29.8%)
CIE-LAB	lab(65.91, -43.52, 24.71)
CIE-LCH	lch(65.91, 50.04, 150.41°)
OKLab	oklab(69.1% -0.1181 0.0619)
OKLCH	oklch(69.1% 0.133 152.3)
XYZ	xyz(22.5490, 35.2025, 21.5228)
Luminance	0.3520 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B372 #B35192

analogous

#61B351 #51B372 #51B3A3

triadic

#51B372 #7251B3 #B37251

tetradic

#51B372 #5161B3 #B35192 #B3A351

square

#51B372 #5161B3 #B35192 #B3A351

split-complementary

#51B372 #A351B3 #B35161

monochromatic

#2A603C #3C8A57 #51B372 #7CC695 #A6D8B7

Accessibility & contrast

On white

2.61

#51B372 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.04

#51B372 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B372

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B372	#FFFFFF	#000000	##000000
##51B372	1.00	2.61	8.04	8.04
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.04	21.00	1.00	1.00
##000000	8.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3A66E

Deuteranopia (green-blind)

#A69C76

Tritanopia (blue-blind)

#37B1A2

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #51b372;
/* rgb */ color: rgb(81, 179, 114);
/* oklch */ color: oklch(69.1% 0.133 152.3);

Tailwind

colors: {
  custom: {
    50: '#89ca9b',
    500: '#51b372',
    950: '#000000',
  },
}

SCSS

$custom: #51b372;
$custom-light: #89ca9b;
$custom-dark: #000000;

JSON

{
  "hex": "#51b372",
  "rgb": {
    "r": 81,
    "g": 179,
    "b": 114
  },
  "hsl": {
    "h": 140.204,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.69104,
    "c": 0.13337,
    "h": 152.3
  },
  "luminance": 0.35204
}

Semantic roles & 50–950 ramp

primary

#51B372

secondary

#C69AB7

accent

#59A7CF

background

#F8FCF9

surface

#F0F8F2

border

#CBD1CC

text

#0C130E

muted

#7D827E

Preview Lab

Preview with #51B372

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

Preview Lab → · Contrast checker → · Palette generator →