#66CC3C#66CC3C

#66CC3C is a light, highly saturated green. Relative luminance 0.463; OKLCH L 75.6% C 0.203 H 138.2°. Best body text is #000000 at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#66CC3C
RGB	rgb(102, 204, 60)
HSL	hsl(103, 59%, 52%)
HSV	hsv(103, 71%, 80%)
CMYK	cmyk(50%, 0%, 70.6%, 20%)
CIE-LAB	lab(73.76, -54.66, 59.55)
CIE-LCH	lch(73.76, 80.83, 132.55°)
OKLab	oklab(75.56% -0.1509 0.1351)
OKLCH	oklch(75.56% 0.203 138.2)
XYZ	xyz(27.8870, 46.3347, 11.7481)
Luminance	0.4634 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CC3C #A23CCC

analogous

#AECC3C #66CC3C #3CCC5A

triadic

#66CC3C #3C66CC #CC3C66

tetradic

#66CC3C #3CAECC #A23CCC #CC5A3C

square

#66CC3C #3CAECC #A23CCC #CC5A3C

split-complementary

#66CC3C #5A3CCC #CC3CAE

monochromatic

#36701D #4DA12A #66CC3C #8CD96D #B2E59D

Accessibility & contrast

On white

2.05

#66CC3C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.27

#66CC3C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CC3C

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CC3C	#FFFFFF	#000000	##000000
##66CC3C	1.00	2.05	10.27	10.27
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.27	21.00	1.00	1.00
##000000	10.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BB24

Deuteranopia (green-blind)

#C5B24A

Tritanopia (blue-blind)

#5EC5B0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cc3c;
/* rgb */ color: rgb(102, 204, 60);
/* oklch */ color: oklch(75.6% 0.203 138.2);

Tailwind

colors: {
  custom: {
    50: '#9adc7a',
    500: '#66cc3c',
    950: '#000000',
  },
}

SCSS

$custom: #66cc3c;
$custom-light: #9adc7a;
$custom-dark: #000000;

JSON

{
  "hex": "#66cc3c",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 60
  },
  "hsl": {
    "h": 102.5,
    "s": 58.537,
    "l": 51.765
  },
  "oklch": {
    "l": 0.7556,
    "c": 0.20254,
    "h": 138.2
  },
  "luminance": 0.46337
}

Semantic roles & 50–950 ramp

primary

#66CC3C

secondary

#BF92D1

accent

#46E2B4

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CC3C

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

Preview Lab → · Contrast checker → · Palette generator →