#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
RGB	rgb(102, 191, 41)
HSL	hsl(96, 65%, 45%)
HSV	hsv(96, 79%, 75%)
CMYK	cmyk(46.6%, 0%, 78.5%, 25.1%)
CIE-LAB	lab(69.64, -50.90, 61.94)
CIE-LCH	lch(69.64, 80.17, 129.41°)
OKLab	oklab(72.14% -0.142 0.1374)
OKLCH	oklch(72.14% 0.198 135.9)
XYZ	xyz(24.5099, 40.2449, 8.5739)
Luminance	0.4025 (WCAG relative)
Temperature	warm
Family	yellow-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
##66BF29	1.00	2.32	9.05	9.05
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.05	21.00	1.00	1.00
##000000	9.05	21.00	1.00	1.00

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 →