#51D139#51D139

#51D139 is a light, highly saturated green. Relative luminance 0.476; OKLCH L 76.1% C 0.219 H 140.8°. Best body text is #000000 at 10.53:1 contrast (WCAG AA passes).

Color values

HEX#51D139
RGBrgb(81, 209, 57)
HSLhsl(111, 62%, 52%)
HSVhsv(111, 73%, 82%)
CMYKcmyk(61.2%, 0%, 72.7%, 18%)
CIE-LABlab(74.60, -62.11, 61.27)
CIE-LCHlch(74.60, 87.24, 135.39°)
OKLaboklab(76.05% -0.1699 0.1385)
OKLCHoklch(76.05% 0.219 140.8)
XYZxyz(26.9310, 47.6431, 11.6469)
Luminance0.4765 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51D139 #B939D1
analogous
#9DD139 #51D139 #39D16D
triadic
#51D139 #3951D1 #D13951
tetradic
#51D139 #399DD1 #B939D1 #D16D39
square
#51D139 #399DD1 #B939D1 #D16D39
split-complementary
#51D139 #6D39D1 #D1399D
monochromatic
#29751B #3BA627 #51D139 #7DDD6B #A8E89C

Accessibility & contrast

On white

1.99
#51D139 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.53
#51D139 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D139
10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51D139#FFFFFF#000000##000000
##51D1391.001.9910.5310.53
#FFFFFF1.991.0021.0021.00
#00000010.5321.001.001.00
##00000010.5321.001.001.00

Color blindness preview

Protanopia (red-blind)
#D6BE1D
Deuteranopia (green-blind)
#C7B449
Tritanopia (blue-blind)
#3DCAB4
Achromatopsia (no color)
#B8B8B8

Design tokens & code

CSS
--color: #51d139;
/* rgb */ color: rgb(81, 209, 57);
/* oklch */ color: oklch(76.1% 0.219 140.8);
Tailwind
colors: {
  custom: {
    50: '#90e079',
    500: '#51d139',
    950: '#000000',
  },
}
SCSS
$custom: #51d139;
$custom-light: #90e079;
$custom-dark: #000000;
JSON
{
  "hex": "#51d139",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 57
  },
  "hsl": {
    "h": 110.526,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.76051,
    "c": 0.21921,
    "h": 140.8
  },
  "luminance": 0.47646
}

Semantic roles & 50–950 ramp

primary
#51D139
secondary
#CA92D4
accent
#42E5CC
background
#F9FDF7
surface
#F2FBEE
border
#CCD4C9
text
#0E150A
muted
#7E837C

Preview Lab

Preview with #51D139

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

Preview Lab → · Contrast checker → · Palette generator →

#51D139 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva