#51AF37#51AF37

#51AF37 is a light, vivid green. Relative luminance 0.327; OKLCH L 67.2% C 0.180 H 139.6°. Best body text is #000000 at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#51AF37
RGB	rgb(81, 175, 55)
HSL	hsl(107, 52%, 45%)
HSV	hsv(107, 69%, 69%)
CMYK	cmyk(53.7%, 0%, 68.6%, 31.4%)
CIE-LAB	lab(63.90, -49.96, 50.97)
CIE-LCH	lch(63.90, 71.37, 134.43°)
OKLab	oklab(67.22% -0.1372 0.1167)
OKLCH	oklch(67.22% 0.18 139.6)
XYZ	xyz(19.4121, 32.6836, 8.8993)
Luminance	0.3268 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AF37 #9537AF

analogous

#8DAF37 #51AF37 #37AF59

triadic

#51AF37 #3751AF #AF3751

tetradic

#51AF37 #378DAF #9537AF #AF5937

square

#51AF37 #378DAF #9537AF #AF5937

split-complementary

#51AF37 #5937AF #AF378D

monochromatic

#26521A #3B8028 #51AF37 #71CB59 #99D987

Accessibility & contrast

On white

2.79

#51AF37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.54

#51AF37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AF37

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AF37	#FFFFFF	#000000	##000000
##51AF37	1.00	2.79	7.54	7.54
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.54	21.00	1.00	1.00
##000000	7.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A026

Deuteranopia (green-blind)

#A89842

Tritanopia (blue-blind)

#47A997

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #51af37;
/* rgb */ color: rgb(81, 175, 55);
/* oklch */ color: oklch(67.2% 0.180 139.6);

Tailwind

colors: {
  custom: {
    50: '#8bc874',
    500: '#51af37',
    950: '#000000',
  },
}

SCSS

$custom: #51af37;
$custom-light: #8bc874;
$custom-dark: #000000;

JSON

{
  "hex": "#51af37",
  "rgb": {
    "r": 81,
    "g": 175,
    "b": 55
  },
  "hsl": {
    "h": 107,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.67218,
    "c": 0.18012,
    "h": 139.6
  },
  "luminance": 0.32685
}

Semantic roles & 50–950 ramp

primary

#51AF37

secondary

#B47FC3

accent

#4CDCBD

background

#F9FCF7

surface

#F1F8ED

border

#CBD1C8

text

#0D1309

muted

#7E827B

Preview Lab

Preview with #51AF37

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

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