#66BD36#66BD36

#66BD36 is a light, vivid yellow-green. Relative luminance 0.395; OKLCH L 71.7% C 0.188 H 136.7°. Best body text is #000000 at 8.90:1 contrast (WCAG AA passes).

Color values

HEX#66BD36
RGBrgb(102, 189, 54)
HSLhsl(99, 56%, 48%)
HSVhsv(99, 71%, 74%)
CMYKcmyk(46%, 0%, 71.4%, 25.9%)
CIE-LABlab(69.10, -49.29, 57.01)
CIE-LCHlch(69.10, 75.36, 130.85°)
OKLaboklab(71.72% -0.1368 0.1289)
OKLCHoklch(71.72% 0.188 136.7)
XYZxyz(24.3422, 39.4848, 9.8280)
Luminance0.3949 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66BD36 #8D36BD
analogous
#A9BD36 #66BD36 #36BD4A
triadic
#66BD36 #3666BD #BD3666
tetradic
#66BD36 #36A9BD #8D36BD #BD4A36
square
#66BD36 #36A9BD #8D36BD #BD4A36
split-complementary
#66BD36 #4A36BD #BD36A9
monochromatic
#335E1B #4C8D28 #66BD36 #88D15F #ABDF8F

Accessibility & contrast

On white

2.36
#66BD36 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.90
#66BD36 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD36
8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66BD36#FFFFFF#000000##000000
##66BD361.002.368.908.90
#FFFFFF2.361.0021.0021.00
#0000008.9021.001.001.00
##0000008.9021.001.001.00

Color blindness preview

Protanopia (red-blind)
#C3AD1F
Deuteranopia (green-blind)
#B8A643
Tritanopia (blue-blind)
#62B6A2
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #66bd36;
/* rgb */ color: rgb(102, 189, 54);
/* oklch */ color: oklch(71.7% 0.188 136.7);
Tailwind
colors: {
  custom: {
    50: '#99d175',
    500: '#66bd36',
    950: '#000000',
  },
}
SCSS
$custom: #66bd36;
$custom-light: #99d175;
$custom-dark: #000000;
JSON
{
  "hex": "#66bd36",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 54
  },
  "hsl": {
    "h": 98.667,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.71716,
    "c": 0.188,
    "h": 136.7
  },
  "luminance": 0.39486
}

Semantic roles & 50–950 ramp

primary
#66BD36
secondary
#B185C9
accent
#49DFAA
background
#F9FCF7
surface
#F2F9ED
border
#CCD2C8
text
#0F1409
muted
#7E827B

Preview Lab

Preview with #66BD36

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

Preview Lab → · Contrast checker → · Palette generator →

#66BD36 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva