#66C656#66C656

#66C656 is a light, vivid green. Relative luminance 0.439; OKLCH L 74.3% C 0.176 H 140.9°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#66C656
RGB	rgb(102, 198, 86)
HSL	hsl(111, 50%, 56%)
HSV	hsv(111, 57%, 78%)
CMYK	cmyk(48.5%, 0%, 56.6%, 22.4%)
CIE-LAB	lab(72.15, -49.85, 46.82)
CIE-LCH	lch(72.15, 68.39, 136.80°)
OKLab	oklab(74.31% -0.1363 0.1108)
OKLCH	oklch(74.31% 0.176 140.9)
XYZ	xyz(27.3521, 43.8829, 15.8312)
Luminance	0.4389 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C656 #B656C6

analogous

#9EC656 #66C656 #56C67E

triadic

#66C656 #5666C6 #C65666

tetradic

#66C656 #569EC6 #B656C6 #C67E56

square

#66C656 #569EC6 #B656C6 #C67E56

split-complementary

#66C656 #7E56C6 #C6569E

monochromatic

#347929 #48A738 #66C656 #8FD584 #B9E5B2

Accessibility & contrast

On white

2.15

#66C656 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#66C656 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C656

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C656	#FFFFFF	#000000	##000000
##66C656	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBB64B

Deuteranopia (green-blind)

#BEAE5E

Tritanopia (blue-blind)

#5CC0AD

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66c656;
/* rgb */ color: rgb(102, 198, 86);
/* oklch */ color: oklch(74.3% 0.176 140.9);

Tailwind

colors: {
  custom: {
    50: '#99d889',
    500: '#66c656',
    950: '#000000',
  },
}

SCSS

$custom: #66c656;
$custom-light: #99d889;
$custom-dark: #000000;

JSON

{
  "hex": "#66c656",
  "rgb": {
    "r": 102,
    "g": 198,
    "b": 86
  },
  "hsl": {
    "h": 111.429,
    "s": 49.558,
    "l": 55.686
  },
  "oklch": {
    "l": 0.74309,
    "c": 0.17564,
    "h": 140.9
  },
  "luminance": 0.43885
}

Semantic roles & 50–950 ramp

primary

#66C656

secondary

#CDA5D3

accent

#4FD9C5

background

#F9FDF8

surface

#F2FAF0

border

#CCD3CB

text

#0E140C

muted

#7E837D

Preview Lab

Preview with #66C656

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

Preview Lab → · Contrast checker → · Palette generator →