#51B237#51B237

#51B237 is a light, vivid green. Relative luminance 0.339; OKLCH L 68.0% C 0.184 H 139.8°. Best body text is #000000 at 7.77:1 contrast (WCAG AA passes).

Color values

HEX#51B237
RGBrgb(81, 178, 55)
HSLhsl(107, 53%, 46%)
HSVhsv(107, 69%, 70%)
CMYKcmyk(54.5%, 0%, 69.1%, 30.2%)
CIE-LABlab(64.85, -51.10, 51.97)
CIE-LCHlch(64.85, 72.89, 134.52°)
OKLaboklab(68% -0.1403 0.1188)
OKLCHoklch(68% 0.184 139.8)
XYZxyz(20.0025, 33.8643, 9.0961)
Luminance0.3387 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51B237 #9837B2
analogous
#8EB237 #51B237 #37B25A
triadic
#51B237 #3751B2 #B23751
tetradic
#51B237 #378EB2 #9837B2 #B25A37
square
#51B237 #378EB2 #9837B2 #B25A37
split-complementary
#51B237 #5A37B2 #B2378E
monochromatic
#26541A #3C8329 #51B237 #72CC5A #9ADB89

Accessibility & contrast

On white

2.70
#51B237 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.77
#51B237 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B237
7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51B237#FFFFFF#000000##000000
##51B2371.002.707.777.77
#FFFFFF2.701.0021.0021.00
#0000007.7721.001.001.00
##0000007.7721.001.001.00

Color blindness preview

Protanopia (red-blind)
#B7A225
Deuteranopia (green-blind)
#AB9A42
Tritanopia (blue-blind)
#47AC99
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #51b237;
/* rgb */ color: rgb(81, 178, 55);
/* oklch */ color: oklch(68.0% 0.184 139.8);
Tailwind
colors: {
  custom: {
    50: '#8bca74',
    500: '#51b237',
    950: '#000000',
  },
}
SCSS
$custom: #51b237;
$custom-light: #8bca74;
$custom-dark: #000000;
JSON
{
  "hex": "#51b237",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 55
  },
  "hsl": {
    "h": 107.317,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.68001,
    "c": 0.18383,
    "h": 139.8
  },
  "luminance": 0.33866
}

Semantic roles & 50–950 ramp

primary
#51B237
secondary
#B680C5
accent
#4CDCBE
background
#F9FCF7
surface
#F1F8ED
border
#CBD1C8
text
#0D1309
muted
#7E827B

Preview Lab

Preview with #51B237

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

Preview Lab → · Contrast checker → · Palette generator →

#51B237 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva