#66DC4C#66DC4C

#66DC4C is a light, highly saturated green. Relative luminance 0.545; OKLCH L 79.7% C 0.211 H 140.3°. Best body text is #000000 at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#66DC4C
RGB	rgb(102, 220, 76)
HSL	hsl(109, 67%, 58%)
HSV	hsv(109, 65%, 86%)
CMYK	cmyk(53.6%, 0%, 65.5%, 13.7%)
CIE-LAB	lab(78.77, -59.30, 58.62)
CIE-LCH	lch(78.77, 83.38, 135.33°)
OKLab	oklab(79.72% -0.1625 0.135)
OKLCH	oklch(79.72% 0.211 140.3)
XYZ	xyz(32.3758, 54.5303, 15.6554)
Luminance	0.5453 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DC4C #C24CDC

analogous

#AEDC4C #66DC4C #4CDC7A

triadic

#66DC4C #4C66DC #DC4C66

tetradic

#66DC4C #4CAEDC #C24CDC #DC7A4C

square

#66DC4C #4CAEDC #C24CDC #DC7A4C

split-complementary

#66DC4C #7A4CDC #DC4CAE

monochromatic

#31911C #43C426 #66DC4C #92E67F #BEF0B2

Accessibility & contrast

On white

1.76

#66DC4C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.91

#66DC4C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DC4C

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DC4C	#FFFFFF	#000000	##000000
##66DC4C	1.00	1.76	11.91	11.91
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.91	21.00	1.00	1.00
##000000	11.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C939

Deuteranopia (green-blind)

#D3BF59

Tritanopia (blue-blind)

#59D5BE

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66dc4c;
/* rgb */ color: rgb(102, 220, 76);
/* oklch */ color: oklch(79.7% 0.211 140.3);

Tailwind

colors: {
  custom: {
    50: '#9ce884',
    500: '#66dc4c',
    950: '#000000',
  },
}

SCSS

$custom: #66dc4c;
$custom-light: #9ce884;
$custom-dark: #000000;

JSON

{
  "hex": "#66dc4c",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 76
  },
  "hsl": {
    "h": 109.167,
    "s": 67.29,
    "l": 58.039
  },
  "oklch": {
    "l": 0.7972,
    "c": 0.21129,
    "h": 140.3
  },
  "luminance": 0.54533
}

Semantic roles & 50–950 ramp

primary

#66DC4C

secondary

#853696

accent

#3EEACB

background

#FCFEFB

surface

#F6FDF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66DC4C

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

Preview Lab → · Contrast checker → · Palette generator →