#66D78A#66D78A

#66D78A is a light, vivid green. Relative luminance 0.533; OKLCH L 79.4% C 0.151 H 151.9°. Best body text is #000000 at 11.65:1 contrast (WCAG AA passes).

Color values

HEX#66D78A
RGBrgb(102, 215, 138)
HSLhsl(139, 59%, 62%)
HSVhsv(139, 53%, 84%)
CMYKcmyk(52.6%, 0%, 35.8%, 15.7%)
CIE-LABlab(78.03, -49.09, 28.44)
CIE-LCHlch(78.03, 56.73, 149.91°)
OKLaboklab(79.36% -0.1333 0.0712)
OKLCHoklch(79.36% 0.151 151.9)
XYZxyz(34.3649, 53.2577, 32.5087)
Luminance0.5326 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66D78A #D766B3
analogous
#7BD766 #66D78A #66D7C2
triadic
#66D78A #8A66D7 #D78A66
tetradic
#66D78A #667BD7 #D766B3 #D7C266
square
#66D78A #667BD7 #D766B3 #D7C266
split-complementary
#66D78A #C266D7 #D7667B
monochromatic
#289A4D #35CA65 #66D78A #97E4AF #C7F0D4

Accessibility & contrast

On white

1.80
#66D78A on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.65
#66D78A on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D78A
11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66D78A#FFFFFF#000000##000000
##66D78A1.001.8011.6511.65
#FFFFFF1.801.0021.0021.00
#00000011.6521.001.001.00
##00000011.6521.001.001.00

Color blindness preview

Protanopia (red-blind)
#D8C885
Deuteranopia (green-blind)
#C8BD8F
Tritanopia (blue-blind)
#4AD4C3
Achromatopsia (no color)
#C1C1C1

Design tokens & code

CSS
--color: #66d78a;
/* rgb */ color: rgb(102, 215, 138);
/* oklch */ color: oklch(79.4% 0.151 151.9);
Tailwind
colors: {
  custom: {
    50: '#99e4ac',
    500: '#66d78a',
    950: '#000000',
  },
}
SCSS
$custom: #66d78a;
$custom-light: #99e4ac;
$custom-dark: #000000;
JSON
{
  "hex": "#66d78a",
  "rgb": {
    "r": 102,
    "g": 215,
    "b": 138
  },
  "hsl": {
    "h": 139.115,
    "s": 58.549,
    "l": 62.157
  },
  "oklch": {
    "l": 0.7936,
    "c": 0.15115,
    "h": 151.9
  },
  "luminance": 0.53261
}

Semantic roles & 50–950 ramp

primary
#66D78A
secondary
#9F4281
accent
#1F91C6
background
#FCFEFD
surface
#F5FCF7
border
#CFD5D0
text
#0F1610
muted
#808481

Preview Lab

Preview with #66D78A

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

Preview Lab → · Contrast checker → · Palette generator →

#66D78A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva