#51DD8B#51DD8B

#51DD8B is a light, vivid green. Relative luminance 0.553; OKLCH L 80.2% C 0.168 H 154.0°. Best body text is #000000 at 12.07:1 contrast (WCAG AA passes).

Color values

HEX#51DD8B
RGBrgb(81, 221, 139)
HSLhsl(145, 67%, 59%)
HSVhsv(145, 63%, 87%)
CMYKcmyk(63.3%, 0%, 37.1%, 13.3%)
CIE-LABlab(79.23, -55.85, 29.42)
CIE-LCHlch(79.23, 63.12, 152.22°)
OKLaboklab(80.17% -0.1512 0.0736)
OKLCHoklch(80.17% 0.168 154)
XYZxyz(33.9071, 55.3228, 33.3125)
Luminance0.5533 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51DD8B #DD51A3
analogous
#5DDD51 #51DD8B #51DDD1
triadic
#51DD8B #8B51DD #DD8B51
tetradic
#51DD8B #515DDD #DD51A3 #DDD151
square
#51DD8B #515DDD #DD51A3 #DDD151
split-complementary
#51DD8B #D151DD #DD515D
monochromatic
#1D964F #27C96B #51DD8B #84E7AD #B7F1CF

Accessibility & contrast

On white

1.74
#51DD8B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.07
#51DD8B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD8B
12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51DD8B#FFFFFF#000000##000000
##51DD8B1.001.7412.0712.07
#FFFFFF1.741.0021.0021.00
#00000012.0721.001.001.00
##00000012.0721.001.001.00

Color blindness preview

Protanopia (red-blind)
#DDCC86
Deuteranopia (green-blind)
#CABF90
Tritanopia (blue-blind)
#05DAC8
Achromatopsia (no color)
#C4C4C4

Design tokens & code

CSS
--color: #51dd8b;
/* rgb */ color: rgb(81, 221, 139);
/* oklch */ color: oklch(80.2% 0.168 154.0);
Tailwind
colors: {
  custom: {
    50: '#90e8ad',
    500: '#51dd8b',
    950: '#000000',
  },
}
SCSS
$custom: #51dd8b;
$custom-light: #90e8ad;
$custom-dark: #000000;
JSON
{
  "hex": "#51dd8b",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 139
  },
  "hsl": {
    "h": 144.857,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.80173,
    "c": 0.16812,
    "h": 154
  },
  "luminance": 0.55326
}

Semantic roles & 50–950 ramp

primary
#51DD8B
secondary
#9B3872
accent
#3EA3EA
background
#FCFEFD
surface
#F5FDF7
border
#CFD5D0
text
#0E1610
muted
#7F8481

Preview Lab

Preview with #51DD8B

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

Preview Lab → · Contrast checker → · Palette generator →

#51DD8B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva