#51B337#51B337

#51B337 is a light, vivid green. Relative luminance 0.343; OKLCH L 68.3% C 0.185 H 139.8°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#51B337
RGB	rgb(81, 179, 55)
HSL	hsl(107, 53%, 46%)
HSV	hsv(107, 69%, 70%)
CMYK	cmyk(54.7%, 0%, 69.3%, 29.8%)
CIE-LAB	lab(65.17, -51.48, 52.31)
CIE-LCH	lch(65.17, 73.39, 134.54°)
OKLab	oklab(68.26% -0.1413 0.1195)
OKLCH	oklch(68.26% 0.185 139.8)
XYZ	xyz(20.2022, 34.2637, 9.1627)
Luminance	0.3427 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B337 #9937B3

analogous

#8FB337 #51B337 #37B35B

triadic

#51B337 #3751B3 #B33751

tetradic

#51B337 #378FB3 #9937B3 #B35B37

square

#51B337 #378FB3 #9937B3 #B35B37

split-complementary

#51B337 #5B37B3 #B3378F

monochromatic

#27551A #3C8429 #51B337 #73CD5B #9BDB8A

Accessibility & contrast

On white

2.67

#51B337 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.85

#51B337 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B337

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B337	#FFFFFF	#000000	##000000
##51B337	1.00	2.67	7.85	7.85
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.85	21.00	1.00	1.00
##000000	7.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A325

Deuteranopia (green-blind)

#AB9B43

Tritanopia (blue-blind)

#46AD9A

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #51b337;
/* rgb */ color: rgb(81, 179, 55);
/* oklch */ color: oklch(68.3% 0.185 139.8);

Tailwind

colors: {
  custom: {
    50: '#8cca74',
    500: '#51b337',
    950: '#000000',
  },
}

SCSS

$custom: #51b337;
$custom-light: #8cca74;
$custom-dark: #000000;

JSON

{
  "hex": "#51b337",
  "rgb": {
    "r": 81,
    "g": 179,
    "b": 55
  },
  "hsl": {
    "h": 107.419,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.68262,
    "c": 0.18507,
    "h": 139.8
  },
  "luminance": 0.34265
}

Semantic roles & 50–950 ramp

primary

#51B337

secondary

#B781C5

accent

#4BDCBE

background

#F9FCF7

surface

#F1F8ED

border

#CBD1C8

text

#0D1309

muted

#7E827B

Preview Lab

Preview with #51B337

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

Preview Lab → · Contrast checker → · Palette generator →