#66C83C#66C83C

#66C83C is a light, vivid green. Relative luminance 0.445; OKLCH L 74.5% C 0.198 H 138.0°. Best body text is #000000 at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#66C83C
RGB	rgb(102, 200, 60)
HSL	hsl(102, 56%, 51%)
HSV	hsv(102, 70%, 78%)
CMYK	cmyk(49%, 0%, 70%, 21.6%)
CIE-LAB	lab(72.53, -53.13, 58.28)
CIE-LCH	lch(72.53, 78.87, 132.35°)
OKLab	oklab(74.55% -0.1468 0.1324)
OKLCH	oklch(74.55% 0.198 138)
XYZ	xyz(26.9485, 44.4577, 11.4352)
Luminance	0.4446 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C83C #9E3CC8

analogous

#ACC83C #66C83C #3CC858

triadic

#66C83C #3C66C8 #C83C66

tetradic

#66C83C #3CACC8 #9E3CC8 #C8583C

square

#66C83C #3CACC8 #9E3CC8 #C8583C

split-complementary

#66C83C #583CC8 #C83CAC

monochromatic

#356B1E #4D9B2C #66C83C #8BD56C #B1E39B

Accessibility & contrast

On white

2.12

#66C83C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.89

#66C83C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C83C

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C83C	#FFFFFF	#000000	##000000
##66C83C	1.00	2.12	9.89	9.89
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.89	21.00	1.00	1.00
##000000	9.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB726

Deuteranopia (green-blind)

#C1AF49

Tritanopia (blue-blind)

#5FC1AC

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #66c83c;
/* rgb */ color: rgb(102, 200, 60);
/* oklch */ color: oklch(74.5% 0.198 138.0);

Tailwind

colors: {
  custom: {
    50: '#9ad97a',
    500: '#66c83c',
    950: '#000000',
  },
}

SCSS

$custom: #66c83c;
$custom-light: #9ad97a;
$custom-dark: #000000;

JSON

{
  "hex": "#66c83c",
  "rgb": {
    "r": 102,
    "g": 200,
    "b": 60
  },
  "hsl": {
    "h": 102,
    "s": 56,
    "l": 50.98
  },
  "oklch": {
    "l": 0.74549,
    "c": 0.1977,
    "h": 138
  },
  "luminance": 0.4446
}

Semantic roles & 50–950 ramp

primary

#66C83C

secondary

#BC91CF

accent

#49DFB2

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66C83C

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

Preview Lab → · Contrast checker → · Palette generator →