#66D042#66D042

#66D042 is a light, highly saturated green. Relative luminance 0.483; OKLCH L 76.6% C 0.204 H 138.9°. Best body text is #000000 at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#66D042
RGB	rgb(102, 208, 66)
HSL	hsl(105, 60%, 54%)
HSV	hsv(105, 68%, 82%)
CMYK	cmyk(51%, 0%, 68.3%, 18.4%)
CIE-LAB	lab(75.03, -55.70, 58.59)
CIE-LCH	lch(75.03, 80.84, 133.55°)
OKLab	oklab(76.62% -0.1534 0.1338)
OKLCH	oklch(76.62% 0.204 138.9)
XYZ	xyz(29.0176, 48.3277, 12.9523)
Luminance	0.4833 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D042 #AC42D0

analogous

#ADD042 #66D042 #42D065

triadic

#66D042 #4266D0 #D04266

tetradic

#66D042 #42ADD0 #AC42D0 #D06542

square

#66D042 #42ADD0 #AC42D0 #D06542

split-complementary

#66D042 #6542D0 #D042AD

monochromatic

#35791E #4BAA2A #66D042 #8EDC73 #B5E8A4

Accessibility & contrast

On white

1.97

#66D042 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.67

#66D042 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D042

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D042	#FFFFFF	#000000	##000000
##66D042	1.00	1.97	10.67	10.67
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.67	21.00	1.00	1.00
##000000	10.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BE2D

Deuteranopia (green-blind)

#C8B54F

Tritanopia (blue-blind)

#5DC9B3

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #66d042;
/* rgb */ color: rgb(102, 208, 66);
/* oklch */ color: oklch(76.6% 0.204 138.9);

Tailwind

colors: {
  custom: {
    50: '#9bdf7e',
    500: '#66d042',
    950: '#000000',
  },
}

SCSS

$custom: #66d042;
$custom-light: #9bdf7e;
$custom-dark: #000000;

JSON

{
  "hex": "#66d042",
  "rgb": {
    "r": 102,
    "g": 208,
    "b": 66
  },
  "hsl": {
    "h": 104.789,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.76617,
    "c": 0.20353,
    "h": 138.9
  },
  "luminance": 0.4833
}

Semantic roles & 50–950 ramp

primary

#66D042

secondary

#C699D5

accent

#44E3BB

background

#FAFDF8

surface

#F3FBEF

border

#CDD4CA

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66D042

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

Preview Lab → · Contrast checker → · Palette generator →