#66BD33#66BD33

#66BD33 is a light, vivid yellow-green. Relative luminance 0.395; OKLCH L 71.7% C 0.190 H 136.5°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX#66BD33
RGBrgb(102, 189, 51)
HSLhsl(98, 58%, 47%)
HSVhsv(98, 73%, 74%)
CMYKcmyk(46%, 0%, 73%, 25.9%)
CIE-LABlab(69.08, -49.50, 58.09)
CIE-LCHlch(69.08, 76.32, 130.44°)
OKLaboklab(71.69% -0.1376 0.1308)
OKLCHoklch(71.69% 0.19 136.5)
XYZxyz(24.2740, 39.4574, 9.4683)
Luminance0.3946 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66BD33 #8A33BD
analogous
#ABBD33 #66BD33 #33BD45
triadic
#66BD33 #3366BD #BD3366
tetradic
#66BD33 #33ABBD #8A33BD #BD4533
square
#66BD33 #33ABBD #8A33BD #BD4533
split-complementary
#66BD33 #4533BD #BD33AB
monochromatic
#325D19 #4C8D26 #66BD33 #87D35B #AAE08B

Accessibility & contrast

On white

2.36
#66BD33 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.89
#66BD33 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD33
8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66BD33#FFFFFF#000000##000000
##66BD331.002.368.898.89
#FFFFFF2.361.0021.0021.00
#0000008.8921.001.001.00
##0000008.8921.001.001.00

Color blindness preview

Protanopia (red-blind)
#C4AD19
Deuteranopia (green-blind)
#B8A641
Tritanopia (blue-blind)
#62B6A2
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #66bd33;
/* rgb */ color: rgb(102, 189, 51);
/* oklch */ color: oklch(71.7% 0.190 136.5);
Tailwind
colors: {
  custom: {
    50: '#99d174',
    500: '#66bd33',
    950: '#000000',
  },
}
SCSS
$custom: #66bd33;
$custom-light: #99d174;
$custom-dark: #000000;
JSON
{
  "hex": "#66bd33",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 51
  },
  "hsl": {
    "h": 97.826,
    "s": 57.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.71694,
    "c": 0.18983,
    "h": 136.5
  },
  "luminance": 0.39459
}

Semantic roles & 50–950 ramp

primary
#66BD33
secondary
#AF82CA
accent
#47E1A8
background
#F9FCF7
surface
#F2F9ED
border
#CCD2C8
text
#0F1409
muted
#7E827B

Preview Lab

Preview with #66BD33

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

Preview Lab → · Contrast checker → · Palette generator →

#66BD33 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva