#66C03E#66C03E

#66C03E is a light, vivid green. Relative luminance 0.409; OKLCH L 72.5% C 0.186 H 137.6°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#66C03E
RGB	rgb(102, 192, 62)
HSL	hsl(102, 51%, 50%)
HSV	hsv(102, 68%, 75%)
CMYK	cmyk(46.9%, 0%, 67.7%, 24.7%)
CIE-LAB	lab(70.08, -49.85, 54.94)
CIE-LCH	lch(70.08, 74.19, 132.22°)
OKLab	oklab(72.54% -0.1378 0.1257)
OKLCH	oklch(72.54% 0.186 137.6)
XYZ	xyz(25.1978, 40.8702, 11.1175)
Luminance	0.4087 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C03E #983EC0

analogous

#A7C03E #66C03E #3EC057

triadic

#66C03E #3E66C0 #C03E66

tetradic

#66C03E #3EA7C0 #983EC0 #C0573E

square

#66C03E #3EA7C0 #983EC0 #C0573E

split-complementary

#66C03E #573EC0 #C03EA7

monochromatic

#356320 #4D922F #66C03E #8ACF6C #AFDE9A

Accessibility & contrast

On white

2.29

#66C03E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#66C03E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C03E

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C03E	#FFFFFF	#000000	##000000
##66C03E	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6B02C

Deuteranopia (green-blind)

#BAA84A

Tritanopia (blue-blind)

#60B9A6

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66c03e;
/* rgb */ color: rgb(102, 192, 62);
/* oklch */ color: oklch(72.5% 0.186 137.6);

Tailwind

colors: {
  custom: {
    50: '#99d47a',
    500: '#66c03e',
    950: '#000000',
  },
}

SCSS

$custom: #66c03e;
$custom-light: #99d47a;
$custom-dark: #000000;

JSON

{
  "hex": "#66c03e",
  "rgb": {
    "r": 102,
    "g": 192,
    "b": 62
  },
  "hsl": {
    "h": 101.538,
    "s": 51.181,
    "l": 49.804
  },
  "oklch": {
    "l": 0.72542,
    "c": 0.18649,
    "h": 137.6
  },
  "luminance": 0.40872
}

Semantic roles & 50–950 ramp

primary

#66C03E

secondary

#B88FCA

accent

#4DDBAF

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F140A

muted

#7E837C

Preview Lab

Preview with #66C03E

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

Preview Lab → · Contrast checker → · Palette generator →