#66DC57#66DC57

#66DC57 is a light, highly saturated green. Relative luminance 0.547; OKLCH L 79.8% C 0.203 H 141.5°. Best body text is #000000 at 11.94:1 contrast (WCAG AA passes).

Color values

HEX#66DC57
RGBrgb(102, 220, 87)
HSLhsl(113, 66%, 60%)
HSVhsv(113, 60%, 86%)
CMYKcmyk(53.6%, 0%, 60.5%, 13.7%)
CIE-LABlab(78.87, -58.23, 54.11)
CIE-LCHlch(78.87, 79.49, 137.10°)
OKLaboklab(79.83% -0.159 0.1266)
OKLCHoklch(79.83% 0.203 141.5)
XYZxyz(32.7914, 54.6966, 17.8445)
Luminance0.5470 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66DC57 #CD57DC
analogous
#A8DC57 #66DC57 #57DC8A
triadic
#66DC57 #5766DC #DC5766
tetradic
#66DC57 #57A8DC #CD57DC #DC8A57
square
#66DC57 #57A8DC #CD57DC #DC8A57
split-complementary
#66DC57 #8A57DC #DC57A8
monochromatic
#2D9920 #3DCB2A #66DC57 #94E78A #C2F1BC

Accessibility & contrast

On white

1.76
#66DC57 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.94
#66DC57 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DC57
11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66DC57#FFFFFF#000000##000000
##66DC571.001.7611.9411.94
#FFFFFF1.761.0021.0021.00
#00000011.9421.001.001.00
##00000011.9421.001.001.00

Color blindness preview

Protanopia (red-blind)
#E1CA48
Deuteranopia (green-blind)
#D2BF62
Tritanopia (blue-blind)
#57D6C0
Achromatopsia (no color)
#C3C3C3

Design tokens & code

CSS
--color: #66dc57;
/* rgb */ color: rgb(102, 220, 87);
/* oklch */ color: oklch(79.8% 0.203 141.5);
Tailwind
colors: {
  custom: {
    50: '#9ce88b',
    500: '#66dc57',
    950: '#000000',
  },
}
SCSS
$custom: #66dc57;
$custom-light: #9ce88b;
$custom-dark: #000000;
JSON
{
  "hex": "#66dc57",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 87
  },
  "hsl": {
    "h": 113.233,
    "s": 65.517,
    "l": 60.196
  },
  "oklch": {
    "l": 0.7983,
    "c": 0.20323,
    "h": 141.5
  },
  "luminance": 0.54699
}

Semantic roles & 50–950 ramp

primary
#66DC57
secondary
#923A9D
accent
#18CDB9
background
#FCFEFC
surface
#F5FDF4
border
#CFD5CE
text
#0F160C
muted
#80847F

Preview Lab

Preview with #66DC57

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

Preview Lab → · Contrast checker → · Palette generator →

#66DC57 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva