#66D03A#66D03A

#66D03A is a light, highly saturated green. Relative luminance 0.482; OKLCH L 76.6% C 0.209 H 138.2°. Best body text is #000000 at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#66D03A
RGB	rgb(102, 208, 58)
HSL	hsl(102, 61%, 52%)
HSV	hsv(102, 72%, 82%)
CMYK	cmyk(51%, 0%, 72.1%, 18.4%)
CIE-LAB	lab(74.98, -56.31, 61.51)
CIE-LCH	lch(74.98, 83.40, 132.47°)
OKLab	oklab(76.55% -0.1555 0.1389)
OKLCH	oklch(76.55% 0.209 138.2)
XYZ	xyz(28.7981, 48.2399, 11.7959)
Luminance	0.4824 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D03A #A43AD0

analogous

#B1D03A #66D03A #3AD059

triadic

#66D03A #3A66D0 #D03A66

tetradic

#66D03A #3AB1D0 #A43AD0 #D0593A

square

#66D03A #3AB1D0 #A43AD0 #D0593A

split-complementary

#66D03A #593AD0 #D03AB1

monochromatic

#36741C #4CA527 #66D03A #8CDC6B #B3E89D

Accessibility & contrast

On white

1.97

#66D03A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.65

#66D03A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D03A

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D03A	#FFFFFF	#000000	##000000
##66D03A	1.00	1.97	10.65	10.65
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.65	21.00	1.00	1.00
##000000	10.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BE1F

Deuteranopia (green-blind)

#C9B549

Tritanopia (blue-blind)

#5EC9B3

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #66d03a;
/* rgb */ color: rgb(102, 208, 58);
/* oklch */ color: oklch(76.6% 0.209 138.2);

Tailwind

colors: {
  custom: {
    50: '#9bdf79',
    500: '#66d03a',
    950: '#000000',
  },
}

SCSS

$custom: #66d03a;
$custom-light: #9bdf79;
$custom-dark: #000000;

JSON

{
  "hex": "#66d03a",
  "rgb": {
    "r": 102,
    "g": 208,
    "b": 58
  },
  "hsl": {
    "h": 102.4,
    "s": 61.475,
    "l": 52.157
  },
  "oklch": {
    "l": 0.76554,
    "c": 0.20853,
    "h": 138.2
  },
  "luminance": 0.48242
}

Semantic roles & 50–950 ramp

primary

#66D03A

secondary

#C092D4

accent

#43E5B5

background

#FAFDF7

surface

#F4FBEE

border

#CED4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66D03A

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

Preview Lab → · Contrast checker → · Palette generator →