#66D342#66D342

#66D342 is a light, highly saturated green. Relative luminance 0.498; OKLCH L 77.4% C 0.207 H 139.0°. Best body text is #000000 at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#66D342
RGB	rgb(102, 211, 66)
HSL	hsl(105, 62%, 54%)
HSV	hsv(105, 69%, 83%)
CMYK	cmyk(51.7%, 0%, 68.7%, 17.3%)
CIE-LAB	lab(75.95, -56.83, 59.55)
CIE-LCH	lch(75.95, 82.31, 133.66°)
OKLab	oklab(77.37% -0.1564 0.1358)
OKLCH	oklch(77.37% 0.207 139)
XYZ	xyz(29.7560, 49.8044, 13.1984)
Luminance	0.4981 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D342 #AF42D3

analogous

#AFD342 #66D342 #42D366

triadic

#66D342 #4266D3 #D34266

tetradic

#66D342 #42AFD3 #AF42D3 #D36642

square

#66D342 #42AFD3 #AF42D3 #D36642

split-complementary

#66D342 #6642D3 #D342AF

monochromatic

#357D1D #4AAF29 #66D342 #8EDF74 #B6EAA5

Accessibility & contrast

On white

1.92

#66D342 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.96

#66D342 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D342

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D342	#FFFFFF	#000000	##000000
##66D342	1.00	1.92	10.96	10.96
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.96	21.00	1.00	1.00
##000000	10.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C12C

Deuteranopia (green-blind)

#CBB84F

Tritanopia (blue-blind)

#5CCCB6

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #66d342;
/* rgb */ color: rgb(102, 211, 66);
/* oklch */ color: oklch(77.4% 0.207 139.0);

Tailwind

colors: {
  custom: {
    50: '#9be17e',
    500: '#66d342',
    950: '#000000',
  },
}

SCSS

$custom: #66d342;
$custom-light: #9be17e;
$custom-dark: #000000;

JSON

{
  "hex": "#66d342",
  "rgb": {
    "r": 102,
    "g": 211,
    "b": 66
  },
  "hsl": {
    "h": 105.103,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.77373,
    "c": 0.20716,
    "h": 139
  },
  "luminance": 0.49807
}

Semantic roles & 50–950 ramp

primary

#66D342

secondary

#C89AD7

accent

#42E5BD

background

#FAFDF8

surface

#F4FBEF

border

#CED4CA

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66D342

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

Preview Lab → · Contrast checker → · Palette generator →