#66DC51#66DC51

#66DC51 is a light, highly saturated green. Relative luminance 0.546; OKLCH L 79.8% C 0.208 H 140.8°. Best body text is #000000 at 11.92:1 contrast (WCAG AA passes).

Color values

HEX#66DC51
RGBrgb(102, 220, 81)
HSLhsl(111, 67%, 59%)
HSVhsv(111, 63%, 86%)
CMYKcmyk(53.6%, 0%, 63.2%, 13.7%)
CIE-LABlab(78.81, -58.83, 56.61)
CIE-LCHlch(78.81, 81.65, 136.10°)
OKLaboklab(79.77% -0.1609 0.1313)
OKLCHoklch(79.77% 0.208 140.8)
XYZxyz(32.5564, 54.6026, 16.6067)
Luminance0.5461 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66DC51 #C751DC
analogous
#ACDC51 #66DC51 #51DC82
triadic
#66DC51 #5166DC #DC5166
tetradic
#66DC51 #51ACDC #C751DC #DC8251
square
#66DC51 #51ACDC #C751DC #DC8251
split-complementary
#66DC51 #8251DC #DC51AC
monochromatic
#30951E #40C828 #66DC51 #93E684 #C0F0B7

Accessibility & contrast

On white

1.76
#66DC51 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.92
#66DC51 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DC51
11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66DC51#FFFFFF#000000##000000
##66DC511.001.7611.9211.92
#FFFFFF1.761.0021.0021.00
#00000011.9221.001.001.00
##00000011.9221.001.001.00

Color blindness preview

Protanopia (red-blind)
#E1C940
Deuteranopia (green-blind)
#D2BF5D
Tritanopia (blue-blind)
#58D5BF
Achromatopsia (no color)
#C3C3C3

Design tokens & code

CSS
--color: #66dc51;
/* rgb */ color: rgb(102, 220, 81);
/* oklch */ color: oklch(79.8% 0.208 140.8);
Tailwind
colors: {
  custom: {
    50: '#9ce887',
    500: '#66dc51',
    950: '#000000',
  },
}
SCSS
$custom: #66dc51;
$custom-light: #9ce887;
$custom-dark: #000000;
JSON
{
  "hex": "#66dc51",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 81
  },
  "hsl": {
    "h": 110.935,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.79768,
    "c": 0.20773,
    "h": 140.8
  },
  "luminance": 0.54605
}

Semantic roles & 50–950 ramp

primary
#66DC51
secondary
#8B3899
accent
#3EE9D0
background
#FCFEFC
surface
#F6FDF4
border
#D0D5CE
text
#0F160C
muted
#80847F

Preview Lab

Preview with #66DC51

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

Preview Lab → · Contrast checker → · Palette generator →

#66DC51 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva