#51D138#51D138

#51D138 is a light, highly saturated green. Relative luminance 0.476; OKLCH L 76.0% C 0.220 H 140.8°. Best body text is #000000 at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#51D138
RGB	rgb(81, 209, 56)
HSL	hsl(110, 62%, 52%)
HSV	hsv(110, 73%, 82%)
CMYK	cmyk(61.2%, 0%, 73.2%, 18%)
CIE-LAB	lab(74.59, -62.18, 61.61)
CIE-LCH	lch(74.59, 87.54, 135.27°)
OKLab	oklab(76.04% -0.1702 0.1391)
OKLCH	oklch(76.04% 0.22 140.8)
XYZ	xyz(26.9063, 47.6332, 11.5168)
Luminance	0.4764 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D138 #B838D1

analogous

#9ED138 #51D138 #38D16C

triadic

#51D138 #3851D1 #D13851

tetradic

#51D138 #389ED1 #B838D1 #D16C38

square

#51D138 #389ED1 #B838D1 #D16C38

split-complementary

#51D138 #6C38D1 #D1389E

monochromatic

#29741B #3BA626 #51D138 #7CDC6A #A8E89B

Accessibility & contrast

On white

1.99

#51D138 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.53

#51D138 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D138

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D138	#FFFFFF	#000000	##000000
##51D138	1.00	1.99	10.53	10.53
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.53	21.00	1.00	1.00
##000000	10.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BE1A

Deuteranopia (green-blind)

#C7B448

Tritanopia (blue-blind)

#3DCAB3

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #51d138;
/* rgb */ color: rgb(81, 209, 56);
/* oklch */ color: oklch(76.0% 0.220 140.8);

Tailwind

colors: {
  custom: {
    50: '#90e078',
    500: '#51d138',
    950: '#000000',
  },
}

SCSS

$custom: #51d138;
$custom-light: #90e078;
$custom-dark: #000000;

JSON

{
  "hex": "#51d138",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 56
  },
  "hsl": {
    "h": 110.196,
    "s": 62.449,
    "l": 51.961
  },
  "oklch": {
    "l": 0.76044,
    "c": 0.21979,
    "h": 140.8
  },
  "luminance": 0.47636
}

Semantic roles & 50–950 ramp

primary

#51D138

secondary

#C991D4

accent

#42E6CB

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E150A

muted

#7E837C

Preview Lab

Preview with #51D138

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

Preview Lab → · Contrast checker → · Palette generator →