#66CC42#66CC42

#66CC42 is a light, vivid green. Relative luminance 0.464; OKLCH L 75.6% C 0.199 H 138.7°. Best body text is #000000 at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#66CC42
RGB	rgb(102, 204, 66)
HSL	hsl(104, 58%, 53%)
HSV	hsv(104, 68%, 80%)
CMYK	cmyk(50%, 0%, 67.6%, 20%)
CIE-LAB	lab(73.81, -54.18, 57.29)
CIE-LCH	lch(73.81, 78.86, 133.40°)
OKLab	oklab(75.61% -0.1493 0.1311)
OKLCH	oklch(75.61% 0.199 138.7)
XYZ	xyz(28.0547, 46.4018, 12.6313)
Luminance	0.4640 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CC42 #A842CC

analogous

#ABCC42 #66CC42 #42CC63

triadic

#66CC42 #4266CC #CC4266

tetradic

#66CC42 #42ABCC #A842CC #CC6342

square

#66CC42 #42ABCC #A842CC #CC6342

split-complementary

#66CC42 #6342CC #CC42AB

monochromatic

#36741F #4CA42C #66CC42 #8DD972 #B4E6A2

Accessibility & contrast

On white

2.04

#66CC42 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.28

#66CC42 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CC42

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CC42	#FFFFFF	#000000	##000000
##66CC42	1.00	2.04	10.28	10.28
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.28	21.00	1.00	1.00
##000000	10.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BB2E

Deuteranopia (green-blind)

#C5B24E

Tritanopia (blue-blind)

#5EC5B0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cc42;
/* rgb */ color: rgb(102, 204, 66);
/* oklch */ color: oklch(75.6% 0.199 138.7);

Tailwind

colors: {
  custom: {
    50: '#9adc7d',
    500: '#66cc42',
    950: '#000000',
  },
}

SCSS

$custom: #66cc42;
$custom-light: #9adc7d;
$custom-dark: #000000;

JSON

{
  "hex": "#66cc42",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 66
  },
  "hsl": {
    "h": 104.348,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.75609,
    "c": 0.19866,
    "h": 138.7
  },
  "luminance": 0.46404
}

Semantic roles & 50–950 ramp

primary

#66CC42

secondary

#C397D3

accent

#47E1B9

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CC42

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

Preview Lab → · Contrast checker → · Palette generator →