#66C73D#66C73D

#66C73D is a light, vivid green. Relative luminance 0.440; OKLCH L 74.3% C 0.196 H 138.0°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#66C73D
RGB	rgb(102, 199, 61)
HSL	hsl(102, 55%, 51%)
HSV	hsv(102, 69%, 78%)
CMYK	cmyk(48.7%, 0%, 69.3%, 22%)
CIE-LAB	lab(72.23, -52.67, 57.59)
CIE-LCH	lch(72.23, 78.04, 132.45°)
OKLab	oklab(74.3% -0.1455 0.1311)
OKLCH	oklch(74.3% 0.196 138)
XYZ	xyz(26.7443, 44.0067, 11.4988)
Luminance	0.4401 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C73D #9E3DC7

analogous

#ABC73D #66C73D #3DC759

triadic

#66C73D #3D66C7 #C73D66

tetradic

#66C73D #3DABC7 #9E3DC7 #C7593D

square

#66C73D #3DABC7 #9E3DC7 #C7593D

split-complementary

#66C73D #593DC7 #C73DAB

monochromatic

#356B1F #4D9A2D #66C73D #8BD56C #B1E29C

Accessibility & contrast

On white

2.14

#66C73D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#66C73D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C73D

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C73D	#FFFFFF	#000000	##000000
##66C73D	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB628

Deuteranopia (green-blind)

#C0AE4A

Tritanopia (blue-blind)

#5FC0AB

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66c73d;
/* rgb */ color: rgb(102, 199, 61);
/* oklch */ color: oklch(74.3% 0.196 138.0);

Tailwind

colors: {
  custom: {
    50: '#9ad97a',
    500: '#66c73d',
    950: '#000000',
  },
}

SCSS

$custom: #66c73d;
$custom-light: #9ad97a;
$custom-dark: #000000;

JSON

{
  "hex": "#66c73d",
  "rgb": {
    "r": 102,
    "g": 199,
    "b": 61
  },
  "hsl": {
    "h": 102.174,
    "s": 55.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.74304,
    "c": 0.19584,
    "h": 138
  },
  "luminance": 0.44009
}

Semantic roles & 50–950 ramp

primary

#66C73D

secondary

#BC91CE

accent

#49DFB2

background

#FAFDF7

surface

#F3FAEE

border

#CDD3C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66C73D

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

Preview Lab → · Contrast checker → · Palette generator →