#66CC3E#66CC3E

#66CC3E is a light, highly saturated green. Relative luminance 0.464; OKLCH L 75.6% C 0.201 H 138.3°. Best body text is #000000 at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#66CC3E
RGB	rgb(102, 204, 62)
HSL	hsl(103, 58%, 52%)
HSV	hsv(103, 70%, 80%)
CMYK	cmyk(50%, 0%, 69.6%, 20%)
CIE-LAB	lab(73.78, -54.51, 58.81)
CIE-LCH	lch(73.78, 80.19, 132.82°)
OKLab	oklab(75.58% -0.1504 0.1338)
OKLCH	oklch(75.58% 0.201 138.3)
XYZ	xyz(27.9409, 46.3563, 12.0318)
Luminance	0.4636 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CC3E #A43ECC

analogous

#ADCC3E #66CC3E #3ECC5D

triadic

#66CC3E #3E66CC #CC3E66

tetradic

#66CC3E #3EADCC #A43ECC #CC5D3E

square

#66CC3E #3EADCC #A43ECC #CC5D3E

split-complementary

#66CC3E #5D3ECC #CC3EAD

monochromatic

#36721E #4CA22B #66CC3E #8CD96E #B3E69F

Accessibility & contrast

On white

2.04

#66CC3E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.27

#66CC3E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CC3E

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CC3E	#FFFFFF	#000000	##000000
##66CC3E	1.00	2.04	10.27	10.27
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.27	21.00	1.00	1.00
##000000	10.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BB28

Deuteranopia (green-blind)

#C5B24B

Tritanopia (blue-blind)

#5EC5B0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cc3e;
/* rgb */ color: rgb(102, 204, 62);
/* oklch */ color: oklch(75.6% 0.201 138.3);

Tailwind

colors: {
  custom: {
    50: '#9adc7b',
    500: '#66cc3e',
    950: '#000000',
  },
}

SCSS

$custom: #66cc3e;
$custom-light: #9adc7b;
$custom-dark: #000000;

JSON

{
  "hex": "#66cc3e",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 62
  },
  "hsl": {
    "h": 103.099,
    "s": 58.197,
    "l": 52.157
  },
  "oklch": {
    "l": 0.75576,
    "c": 0.20128,
    "h": 138.3
  },
  "luminance": 0.46358
}

Semantic roles & 50–950 ramp

primary

#66CC3E

secondary

#C094D2

accent

#46E1B6

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CC3E

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

Preview Lab → · Contrast checker → · Palette generator →