#51BD31#51BD31

#51BD31 is a light, highly saturated green. Relative luminance 0.384; OKLCH L 70.8% C 0.201 H 139.6°. Best body text is #000000 at 8.67:1 contrast (WCAG AA passes).

Color values

HEX#51BD31
RGBrgb(81, 189, 49)
HSLhsl(106, 59%, 47%)
HSVhsv(106, 74%, 74%)
CMYKcmyk(57.1%, 0%, 74.1%, 25.9%)
CIE-LABlab(68.29, -55.65, 57.74)
CIE-LCHlch(68.29, 80.19, 133.94°)
OKLaboklab(70.82% -0.1529 0.13)
OKLCHoklch(70.82% 0.201 139.6)
XYZxyz(22.1444, 38.3644, 9.1433)
Luminance0.3837 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51BD31 #9D31BD
analogous
#97BD31 #51BD31 #31BD57
triadic
#51BD31 #3151BD #BD3151
tetradic
#51BD31 #3197BD #9D31BD #BD5731
square
#51BD31 #3197BD #9D31BD #BD5731
split-complementary
#51BD31 #5731BD #BD3197
monochromatic
#275C18 #3C8C24 #51BD31 #74D458 #9CE088

Accessibility & contrast

On white

2.42
#51BD31 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.67
#51BD31 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BD31
8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51BD31#FFFFFF#000000##000000
##51BD311.002.428.678.67
#FFFFFF2.421.0021.0021.00
#0000008.6721.001.001.00
##0000008.6721.001.001.00

Color blindness preview

Protanopia (red-blind)
#C2AC15
Deuteranopia (green-blind)
#B5A340
Tritanopia (blue-blind)
#45B7A2
Achromatopsia (no color)
#A6A6A6

Design tokens & code

CSS
--color: #51bd31;
/* rgb */ color: rgb(81, 189, 49);
/* oklch */ color: oklch(70.8% 0.201 139.6);
Tailwind
colors: {
  custom: {
    50: '#8dd272',
    500: '#51bd31',
    950: '#000000',
  },
}
SCSS
$custom: #51bd31;
$custom-light: #8dd272;
$custom-dark: #000000;
JSON
{
  "hex": "#51bd31",
  "rgb": {
    "r": 81,
    "g": 189,
    "b": 49
  },
  "hsl": {
    "h": 106.286,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.7082,
    "c": 0.20076,
    "h": 139.6
  },
  "luminance": 0.38366
}

Semantic roles & 50–950 ramp

primary
#51BD31
secondary
#B980CA
accent
#46E2BE
background
#F9FDF7
surface
#F2FAED
border
#CCD3C8
text
#0D1408
muted
#7E837B

Preview Lab

Preview with #51BD31

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

Preview Lab → · Contrast checker → · Palette generator →

#51BD31 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva