#66BF29#66BF29

#66BF29 is a light, vivid yellow-green. Relative luminance 0.402; OKLCH L 72.1% C 0.198 H 135.9°. Best body text is #000000 at 9.05:1 contrast (WCAG AA passes).

Color values

HEX#66BF29
RGBrgb(102, 191, 41)
HSLhsl(96, 65%, 45%)
HSVhsv(96, 79%, 75%)
CMYKcmyk(46.6%, 0%, 78.5%, 25.1%)
CIE-LABlab(69.64, -50.90, 61.94)
CIE-LCHlch(69.64, 80.17, 129.41°)
OKLaboklab(72.14% -0.142 0.1374)
OKLCHoklch(72.14% 0.198 135.9)
XYZxyz(24.5099, 40.2449, 8.5739)
Luminance0.4025 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66BF29 #8229BF
analogous
#B1BF29 #66BF29 #29BF37
triadic
#66BF29 #2966BF #BF2966
tetradic
#66BF29 #29B1BF #8229BF #BF3729
square
#66BF29 #29B1BF #8229BF #BF3729
split-complementary
#66BF29 #3729BF #BF29B1
monochromatic
#305A13 #4B8D1E #66BF29 #86D94D #A8E47F

Accessibility & contrast

On white

2.32
#66BF29 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.05
#66BF29 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BF29
9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66BF29#FFFFFF#000000##000000
##66BF291.002.329.059.05
#FFFFFF2.321.0021.0021.00
#0000009.0521.001.001.00
##0000009.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#C6AF00
Deuteranopia (green-blind)
#BAA73A
Tritanopia (blue-blind)
#62B8A3
Achromatopsia (no color)
#AAAAAA

Design tokens & code

CSS
--color: #66bf29;
/* rgb */ color: rgb(102, 191, 41);
/* oklch */ color: oklch(72.1% 0.198 135.9);
Tailwind
colors: {
  custom: {
    50: '#9ad36f',
    500: '#66bf29',
    950: '#000000',
  },
}
SCSS
$custom: #66bf29;
$custom-light: #9ad36f;
$custom-dark: #000000;
JSON
{
  "hex": "#66bf29",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 41
  },
  "hsl": {
    "h": 95.6,
    "s": 64.655,
    "l": 45.49
  },
  "oklch": {
    "l": 0.72138,
    "c": 0.19758,
    "h": 135.9
  },
  "luminance": 0.40246
}

Semantic roles & 50–950 ramp

primary
#66BF29
secondary
#AA78CC
accent
#40E8A4
background
#FAFDF7
surface
#F3FAED
border
#CDD3C8
text
#0F1408
muted
#7F837B

Preview Lab

Preview with #66BF29

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

Preview Lab → · Contrast checker → · Palette generator →

#66BF29 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva