#66D643#66D643

#66D643 is a light, highly saturated green. Relative luminance 0.513; OKLCH L 78.1% C 0.210 H 139.2°. Best body text is #000000 at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#66D643
RGB	rgb(102, 214, 67)
HSL	hsl(106, 64%, 55%)
HSV	hsv(106, 69%, 84%)
CMYK	cmyk(52.3%, 0%, 68.7%, 16.1%)
CIE-LAB	lab(76.87, -57.86, 60.14)
CIE-LCH	lch(76.87, 83.45, 133.89°)
OKLab	oklab(78.14% -0.1592 0.1372)
OKLCH	oklch(78.14% 0.21 139.2)
XYZ	xyz(30.5380, 51.3208, 13.6058)
Luminance	0.5132 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D643 #B343D6

analogous

#B0D643 #66D643 #43D669

triadic

#66D643 #4366D6 #D64366

tetradic

#66D643 #43B0D6 #B343D6 #D66943

square

#66D643 #43B0D6 #B343D6 #D66943

split-complementary

#66D643 #6943D6 #D643B0

monochromatic

#35821C #49B427 #66D643 #8FE175 #B8ECA7

Accessibility & contrast

On white

1.86

#66D643 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.26

#66D643 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D643

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D643	#FFFFFF	#000000	##000000
##66D643	1.00	1.86	11.26	11.26
#FFFFFF	1.86	1.00	21.00	21.00
#000000	11.26	21.00	1.00	1.00
##000000	11.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC42D

Deuteranopia (green-blind)

#CEBA51

Tritanopia (blue-blind)

#5BCFB9

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #66d643;
/* rgb */ color: rgb(102, 214, 67);
/* oklch */ color: oklch(78.1% 0.210 139.2);

Tailwind

colors: {
  custom: {
    50: '#9ce37f',
    500: '#66d643',
    950: '#000000',
  },
}

SCSS

$custom: #66d643;
$custom-light: #9ce37f;
$custom-dark: #000000;

JSON

{
  "hex": "#66d643",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 67
  },
  "hsl": {
    "h": 105.714,
    "s": 64.192,
    "l": 55.098
  },
  "oklch": {
    "l": 0.78136,
    "c": 0.21011,
    "h": 139.2
  },
  "luminance": 0.51323
}

Semantic roles & 50–950 ramp

primary

#66D643

secondary

#753489

accent

#41E7C0

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66D643

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

Preview Lab → · Contrast checker → · Palette generator →