#66B366#66B366

#66B366 is a light, vivid green. Relative luminance 0.360; OKLCH L 69.8% C 0.134 H 144.0°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#66B366
RGB	rgb(102, 179, 102)
HSL	hsl(120, 34%, 55%)
HSV	hsv(120, 43%, 70%)
CMYK	cmyk(43%, 0%, 43%, 29.8%)
CIE-LAB	lab(66.54, -39.75, 32.02)
CIE-LCH	lch(66.54, 51.04, 141.15°)
OKLab	oklab(69.78% -0.1082 0.0787)
OKLCH	oklch(69.78% 0.134 144)
XYZ	xyz(23.9967, 36.0228, 18.2564)
Luminance	0.3602 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B366 #B366B3

analogous

#8CB366 #66B366 #66B38C

triadic

#66B366 #6666B3 #B36666

tetradic

#66B366 #668CB3 #B366B3 #B38C66

square

#66B366 #668CB3 #B366B3 #B38C66

split-complementary

#66B366 #8C66B3 #B3668C

monochromatic

#356A35 #499349 #66B366 #8FC78F #B8DCB8

Accessibility & contrast

On white

2.56

#66B366 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#66B366 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B366

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B366	#FFFFFF	#000000	##000000
##66B366	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A660

Deuteranopia (green-blind)

#AB9F6B

Tritanopia (blue-blind)

#5DAFA0

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #66b366;
/* rgb */ color: rgb(102, 179, 102);
/* oklch */ color: oklch(69.8% 0.134 144.0);

Tailwind

colors: {
  custom: {
    50: '#96ca92',
    500: '#66b366',
    950: '#000000',
  },
}

SCSS

$custom: #66b366;
$custom-light: #96ca92;
$custom-dark: #000000;

JSON

{
  "hex": "#66b366",
  "rgb": {
    "r": 102,
    "g": 179,
    "b": 102
  },
  "hsl": {
    "h": 120,
    "s": 33.624,
    "l": 55.098
  },
  "oklch": {
    "l": 0.69784,
    "c": 0.1338,
    "h": 144
  },
  "luminance": 0.36024
}

Semantic roles & 50–950 ramp

primary

#66B366

secondary

#CBAACB

accent

#5ECACA

background

#F9FCF9

surface

#F2F8F1

border

#CCD1CB

text

#0E130D

muted

#7E827E

Preview Lab

Preview with #66B366

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

Preview Lab → · Contrast checker → · Palette generator →