#66CD37#66CD37

#66CD37 is a light, highly saturated green. Relative luminance 0.468; OKLCH L 75.8% C 0.207 H 137.8°. Best body text is #000000 at 10.35:1 contrast (WCAG AA passes).

Color values

HEX#66CD37
RGBrgb(102, 205, 55)
HSLhsl(101, 60%, 51%)
HSVhsv(101, 73%, 80%)
CMYKcmyk(50.2%, 0%, 73.2%, 19.6%)
CIE-LABlab(74.04, -55.40, 61.63)
CIE-LCHlch(74.04, 82.87, 131.95°)
OKLaboklab(75.78% -0.1532 0.1387)
OKLCHoklch(75.78% 0.207 137.8)
XYZxyz(27.9995, 46.7612, 11.1641)
Luminance0.4676 (WCAG relative)
Temperaturewarm
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66CD37 #9E37CD
analogous
#B1CD37 #66CD37 #37CD53
triadic
#66CD37 #3766CD #CD3766
tetradic
#66CD37 #37B1CD #9E37CD #CD5337
square
#66CD37 #37B1CD #9E37CD #CD5337
split-complementary
#66CD37 #5337CD #CD37B1
monochromatic
#356E1C #4D9F28 #66CD37 #8BD968 #B1E599

Accessibility & contrast

On white

2.03
#66CD37 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.35
#66CD37 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD37
10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66CD37#FFFFFF#000000##000000
##66CD371.002.0310.3510.35
#FFFFFF2.031.0021.0021.00
#00000010.3521.001.001.00
##00000010.3521.001.001.00

Color blindness preview

Protanopia (red-blind)
#D4BB1A
Deuteranopia (green-blind)
#C6B346
Tritanopia (blue-blind)
#5EC6B0
Achromatopsia (no color)
#B6B6B6

Design tokens & code

CSS
--color: #66cd37;
/* rgb */ color: rgb(102, 205, 55);
/* oklch */ color: oklch(75.8% 0.207 137.8);
Tailwind
colors: {
  custom: {
    50: '#9bdd77',
    500: '#66cd37',
    950: '#000000',
  },
}
SCSS
$custom: #66cd37;
$custom-light: #9bdd77;
$custom-dark: #000000;
JSON
{
  "hex": "#66cd37",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 55
  },
  "hsl": {
    "h": 101.2,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.75775,
    "c": 0.20672,
    "h": 137.8
  },
  "luminance": 0.46763
}

Semantic roles & 50–950 ramp

primary
#66CD37
secondary
#BC8FD1
accent
#45E3B1
background
#FAFDF7
surface
#F4FBEE
border
#CED4C9
text
#0F1509
muted
#7F837B

Preview Lab

Preview with #66CD37

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

Preview Lab → · Contrast checker → · Palette generator →

#66CD37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva