#66D633#66D633

#66D633 is a light, highly saturated green. Relative luminance 0.512; OKLCH L 78.0% C 0.219 H 138.1°. Best body text is #000000 at 11.23:1 contrast (WCAG AA passes).

Color values

HEX#66D633
RGBrgb(102, 214, 51)
HSLhsl(101, 67%, 52%)
HSVhsv(101, 76%, 84%)
CMYKcmyk(52.3%, 0%, 76.2%, 16.1%)
CIE-LABlab(76.77, -58.99, 65.64)
CIE-LCHlch(76.77, 88.25, 131.94°)
OKLaboklab(78.02% -0.1631 0.1466)
OKLCHoklch(78.02% 0.219 138.1)
XYZxyz(30.1225, 51.1546, 11.4178)
Luminance0.5116 (WCAG relative)
Temperaturewarm
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66D633 #A333D6
analogous
#B8D633 #66D633 #33D652
triadic
#66D633 #3366D6 #D63366
tetradic
#66D633 #33B8D6 #A333D6 #D65233
square
#66D633 #33B8D6 #A333D6 #D65233
split-complementary
#66D633 #5233D6 #D633B8
monochromatic
#367718 #4DAA22 #66D633 #8CE066 #B2EA99

Accessibility & contrast

On white

1.87
#66D633 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.23
#66D633 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D633
11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66D633#FFFFFF#000000##000000
##66D6331.001.8711.2311.23
#FFFFFF1.871.0021.0021.00
#00000011.2321.001.001.00
##00000011.2321.001.001.00

Color blindness preview

Protanopia (red-blind)
#DDC306
Deuteranopia (green-blind)
#CEBA45
Tritanopia (blue-blind)
#5DCEB7
Achromatopsia (no color)
#BDBDBD

Design tokens & code

CSS
--color: #66d633;
/* rgb */ color: rgb(102, 214, 51);
/* oklch */ color: oklch(78.0% 0.219 138.1);
Tailwind
colors: {
  custom: {
    50: '#9ce377',
    500: '#66d633',
    950: '#000000',
  },
}
SCSS
$custom: #66d633;
$custom-light: #9ce377;
$custom-dark: #000000;
JSON
{
  "hex": "#66d633",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 51
  },
  "hsl": {
    "h": 101.227,
    "s": 66.531,
    "l": 51.961
  },
  "oklch": {
    "l": 0.78021,
    "c": 0.21931,
    "h": 138.1
  },
  "luminance": 0.51157
}

Semantic roles & 50–950 ramp

primary
#66D633
secondary
#662E7F
accent
#3EE9B4
background
#FCFEFB
surface
#F6FCF1
border
#D0D5CB
text
#0F1609
muted
#80847D

Preview Lab

Preview with #66D633

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

Preview Lab → · Contrast checker → · Palette generator →

#66D633 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva