#66D577#66D577

#66D577 is a light, vivid green. Relative luminance 0.517; OKLCH L 78.5% C 0.166 H 147.0°. Best body text is #000000 at 11.35:1 contrast (WCAG AA passes).

Color values

HEX#66D577
RGBrgb(102, 213, 119)
HSLhsl(129, 57%, 62%)
HSVhsv(129, 52%, 84%)
CMYKcmyk(52.1%, 0%, 44.1%, 16.5%)
CIE-LABlab(77.13, -51.41, 36.93)
CIE-LCHlch(77.13, 63.30, 144.30°)
OKLaboklab(78.53% -0.1394 0.0906)
OKLCHoklch(78.53% 0.166 147)
XYZxyz(32.6015, 51.7425, 25.7185)
Luminance0.5174 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66D577 #D566C4
analogous
#8DD566 #66D577 #66D5AF
triadic
#66D577 #7766D5 #D57766
tetradic
#66D577 #668DD5 #D566C4 #D5AF66
square
#66D577 #668DD5 #D566C4 #D5AF66
split-complementary
#66D577 #AF66D5 #D5668D
monochromatic
#29973A #37C74D #66D577 #96E2A2 #C6EFCC

Accessibility & contrast

On white

1.85
#66D577 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.35
#66D577 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D577
11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66D577#FFFFFF#000000##000000
##66D5771.001.8511.3511.35
#FFFFFF1.851.0021.0021.00
#00000011.3521.001.001.00
##00000011.3521.001.001.00

Color blindness preview

Protanopia (red-blind)
#D7C570
Deuteranopia (green-blind)
#C8BA7D
Tritanopia (blue-blind)
#51D1BE
Achromatopsia (no color)
#BEBEBE

Design tokens & code

CSS
--color: #66d577;
/* rgb */ color: rgb(102, 213, 119);
/* oklch */ color: oklch(78.5% 0.166 147.0);
Tailwind
colors: {
  custom: {
    50: '#99e39f',
    500: '#66d577',
    950: '#000000',
  },
}
SCSS
$custom: #66d577;
$custom-light: #99e39f;
$custom-dark: #000000;
JSON
{
  "hex": "#66d577",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 119
  },
  "hsl": {
    "h": 129.189,
    "s": 56.923,
    "l": 61.765
  },
  "oklch": {
    "l": 0.78525,
    "c": 0.16624,
    "h": 147
  },
  "luminance": 0.51745
}

Semantic roles & 50–950 ramp

primary
#66D577
secondary
#9C438E
accent
#21ABC4
background
#FCFEFC
surface
#F5FCF5
border
#CFD5CF
text
#0F150F
muted
#808480

Preview Lab

Preview with #66D577

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

Preview Lab → · Contrast checker → · Palette generator →

#66D577 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva