#51DE80#51DE80

#51DE80 is a light, vivid green. Relative luminance 0.555; OKLCH L 80.2% C 0.179 H 151.0°. Best body text is #000000 at 12.11:1 contrast (WCAG AA passes).

Color values

HEX#51DE80
RGBrgb(81, 222, 128)
HSLhsl(140, 68%, 59%)
HSVhsv(140, 64%, 87%)
CMYKcmyk(63.5%, 0%, 42.3%, 12.9%)
CIE-LABlab(79.36, -58.15, 35.17)
CIE-LCHlch(79.36, 67.96, 148.83°)
OKLaboklab(80.22% -0.157 0.0869)
OKLCHoklch(80.22% 0.179 151)
XYZxyz(33.4083, 55.5470, 29.3789)
Luminance0.5555 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51DE80 #DE51AF
analogous
#69DE51 #51DE80 #51DEC7
triadic
#51DE80 #8051DE #DE8051
tetradic
#51DE80 #5169DE #DE51AF #DEC751
square
#51DE80 #5169DE #DE51AF #DEC751
split-complementary
#51DE80 #C751DE #DE5169
monochromatic
#1D9846 #27CB5D #51DE80 #84E8A6 #B8F2CB

Accessibility & contrast

On white

1.73
#51DE80 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.11
#51DE80 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DE80
12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51DE80#FFFFFF#000000##000000
##51DE801.001.7312.1112.11
#FFFFFF1.731.0021.0021.00
#00000012.1121.001.001.00
##00000012.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#DFCC79
Deuteranopia (green-blind)
#CDC086
Tritanopia (blue-blind)
#17DBC7
Achromatopsia (no color)
#C5C5C5

Design tokens & code

CSS
--color: #51de80;
/* rgb */ color: rgb(81, 222, 128);
/* oklch */ color: oklch(80.2% 0.179 151.0);
Tailwind
colors: {
  custom: {
    50: '#90e9a6',
    500: '#51de80',
    950: '#000000',
  },
}
SCSS
$custom: #51de80;
$custom-light: #90e9a6;
$custom-dark: #000000;
JSON
{
  "hex": "#51de80",
  "rgb": {
    "r": 81,
    "g": 222,
    "b": 128
  },
  "hsl": {
    "h": 140,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.80221,
    "c": 0.17942,
    "h": 151
  },
  "luminance": 0.5555
}

Semantic roles & 50–950 ramp

primary
#51DE80
secondary
#9C377A
accent
#3DB1EB
background
#FCFEFC
surface
#F5FDF6
border
#CFD5D0
text
#0E160F
muted
#7F8480

Preview Lab

Preview with #51DE80

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

Preview Lab → · Contrast checker → · Palette generator →

#51DE80 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva