#66CC4C#66CC4C

#66CC4C is a light, vivid green. Relative luminance 0.465; OKLCH L 75.7% C 0.192 H 139.8°. Best body text is #000000 at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#66CC4C
RGB	rgb(102, 204, 76)
HSL	hsl(108, 56%, 55%)
HSV	hsv(108, 63%, 80%)
CMYK	cmyk(50%, 0%, 62.7%, 20%)
CIE-LAB	lab(73.89, -53.28, 53.27)
CIE-LCH	lch(73.89, 75.34, 135.00°)
OKLab	oklab(75.7% -0.1462 0.1237)
OKLCH	oklch(75.7% 0.192 139.8)
XYZ	xyz(28.3757, 46.5302, 14.3220)
Luminance	0.4653 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CC4C #B24CCC

analogous

#A6CC4C #66CC4C #4CCC72

triadic

#66CC4C #4C66CC #CC4C66

tetradic

#66CC4C #4CA6CC #B24CCC #CC724C

square

#66CC4C #4CA6CC #B24CCC #CC724C

split-complementary

#66CC4C #724CCC #CC4CA6

monochromatic

#357B23 #49AA31 #66CC4C #8FDA7C #B7E7AB

Accessibility & contrast

On white

2.04

#66CC4C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.31

#66CC4C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CC4C

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CC4C	#FFFFFF	#000000	##000000
##66CC4C	1.00	2.04	10.31	10.31
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.31	21.00	1.00	1.00
##000000	10.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BB3D

Deuteranopia (green-blind)

#C4B257

Tritanopia (blue-blind)

#5CC6B1

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cc4c;
/* rgb */ color: rgb(102, 204, 76);
/* oklch */ color: oklch(75.7% 0.192 139.8);

Tailwind

colors: {
  custom: {
    50: '#9adc83',
    500: '#66cc4c',
    950: '#000000',
  },
}

SCSS

$custom: #66cc4c;
$custom-light: #9adc83;
$custom-dark: #000000;

JSON

{
  "hex": "#66cc4c",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 76
  },
  "hsl": {
    "h": 107.813,
    "s": 55.652,
    "l": 54.902
  },
  "oklch": {
    "l": 0.75704,
    "c": 0.1915,
    "h": 139.8
  },
  "luminance": 0.46532
}

Semantic roles & 50–950 ramp

primary

#66CC4C

secondary

#CA9FD5

accent

#49DFC0

background

#F9FDF8

surface

#F2FBEF

border

#CCD4CA

text

#0F150B

muted

#7E837C

Preview Lab

Preview with #66CC4C

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

Preview Lab → · Contrast checker → · Palette generator →