#66C242#66C242

#66C242 is a light, vivid green. Relative luminance 0.418; OKLCH L 73.1% C 0.186 H 138.2°. Best body text is #000000 at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#66C242
RGB	rgb(102, 194, 66)
HSL	hsl(103, 51%, 51%)
HSV	hsv(103, 66%, 76%)
CMYK	cmyk(47.4%, 0%, 66%, 23.9%)
CIE-LAB	lab(70.73, -50.30, 54.01)
CIE-LCH	lch(70.73, 73.81, 132.96°)
OKLab	oklab(73.08% -0.1387 0.1242)
OKLCH	oklch(73.08% 0.186 138.2)
XYZ	xyz(25.7538, 41.8000, 11.8643)
Luminance	0.4180 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C242 #9E42C2

analogous

#A6C242 #66C242 #42C25E

triadic

#66C242 #4266C2 #C24266

tetradic

#66C242 #42A6C2 #9E42C2 #C25E42

square

#66C242 #42A6C2 #9E42C2 #C25E42

split-complementary

#66C242 #5E42C2 #C242A6

monochromatic

#356822 #4D9631 #66C242 #8BD170 #B1E09F

Accessibility & contrast

On white

2.24

#66C242 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.36

#66C242 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C242

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C242	#FFFFFF	#000000	##000000
##66C242	1.00	2.24	9.36	9.36
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.36	21.00	1.00	1.00
##000000	9.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B231

Deuteranopia (green-blind)

#BCAA4D

Tritanopia (blue-blind)

#5FBBA8

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #66c242;
/* rgb */ color: rgb(102, 194, 66);
/* oklch */ color: oklch(73.1% 0.186 138.2);

Tailwind

colors: {
  custom: {
    50: '#99d57c',
    500: '#66c242',
    950: '#000000',
  },
}

SCSS

$custom: #66c242;
$custom-light: #99d57c;
$custom-dark: #000000;

JSON

{
  "hex": "#66c242",
  "rgb": {
    "r": 102,
    "g": 194,
    "b": 66
  },
  "hsl": {
    "h": 103.125,
    "s": 51.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.73084,
    "c": 0.1862,
    "h": 138.2
  },
  "luminance": 0.41802
}

Semantic roles & 50–950 ramp

primary

#66C242

secondary

#BC94CC

accent

#4DDBB3

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F140A

muted

#7E837C

Preview Lab

Preview with #66C242

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

Preview Lab → · Contrast checker → · Palette generator →