#66DF42#66DF42

#66DF42 is a light, highly saturated green. Relative luminance 0.560; OKLCH L 80.4% C 0.221 H 139.5°. Best body text is #000000 at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#66DF42
RGB	rgb(102, 223, 66)
HSL	hsl(106, 71%, 57%)
HSV	hsv(106, 70%, 87%)
CMYK	cmyk(54.3%, 0%, 70.4%, 12.5%)
CIE-LAB	lab(79.61, -61.22, 63.35)
CIE-LCH	lch(79.61, 88.10, 134.02°)
OKLab	oklab(80.39% -0.1683 0.1438)
OKLCH	oklch(80.39% 0.221 139.5)
XYZ	xyz(32.8492, 55.9908, 14.2295)
Luminance	0.5599 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DF42 #BB42DF

analogous

#B5DF42 #66DF42 #42DF6D

triadic

#66DF42 #4266DF #DF4266

tetradic

#66DF42 #42B5DF #BB42DF #DF6D42

square

#66DF42 #42B5DF #BB42DF #DF6D42

split-complementary

#66DF42 #6D42DF #DF42B5

monochromatic

#338E18 #46C321 #66DF42 #90E876 #BBF1AB

Accessibility & contrast

On white

1.72

#66DF42 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.20

#66DF42 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DF42

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DF42	#FFFFFF	#000000	##000000
##66DF42	1.00	1.72	12.20	12.20
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.20	21.00	1.00	1.00
##000000	12.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E5CC28

Deuteranopia (green-blind)

#D6C151

Tritanopia (blue-blind)

#59D8C0

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #66df42;
/* rgb */ color: rgb(102, 223, 66);
/* oklch */ color: oklch(80.4% 0.221 139.5);

Tailwind

colors: {
  custom: {
    50: '#9dea7f',
    500: '#66df42',
    950: '#000000',
  },
}

SCSS

$custom: #66df42;
$custom-light: #9dea7f;
$custom-dark: #000000;

JSON

{
  "hex": "#66df42",
  "rgb": {
    "r": 102,
    "g": 223,
    "b": 66
  },
  "hsl": {
    "h": 106.242,
    "s": 71.041,
    "l": 56.667
  },
  "oklch": {
    "l": 0.80388,
    "c": 0.22135,
    "h": 139.5
  },
  "luminance": 0.55993
}

Semantic roles & 50–950 ramp

primary

#66DF42

secondary

#7D3294

accent

#3AEEC5

background

#FCFEFB

surface

#F6FDF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66DF42

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

Preview Lab → · Contrast checker → · Palette generator →