#66CC3D#66CC3D

#66CC3D is a light, highly saturated green. Relative luminance 0.463; OKLCH L 75.6% C 0.202 H 138.3°. Best body text is #000000 at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#66CC3D
RGB	rgb(102, 204, 61)
HSL	hsl(103, 58%, 52%)
HSV	hsv(103, 70%, 80%)
CMYK	cmyk(50%, 0%, 70.1%, 20%)
CIE-LAB	lab(73.77, -54.59, 59.18)
CIE-LCH	lch(73.77, 80.51, 132.69°)
OKLab	oklab(75.57% -0.1507 0.1344)
OKLCH	oklch(75.57% 0.202 138.3)
XYZ	xyz(27.9137, 46.3454, 11.8886)
Luminance	0.4635 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CC3D #A33DCC

analogous

#AECC3D #66CC3D #3DCC5C

triadic

#66CC3D #3D66CC #CC3D66

tetradic

#66CC3D #3DAECC #A33DCC #CC5C3D

square

#66CC3D #3DAECC #A33DCC #CC5C3D

split-complementary

#66CC3D #5C3DCC #CC3DAE

monochromatic

#36711E #4DA12A #66CC3D #8CD96D #B2E59E

Accessibility & contrast

On white

2.04

#66CC3D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.27

#66CC3D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CC3D

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CC3D	#FFFFFF	#000000	##000000
##66CC3D	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)

#D2BB26

Deuteranopia (green-blind)

#C5B24B

Tritanopia (blue-blind)

#5EC5B0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cc3d;
/* rgb */ color: rgb(102, 204, 61);
/* oklch */ color: oklch(75.6% 0.202 138.3);

Tailwind

colors: {
  custom: {
    50: '#9adc7a',
    500: '#66cc3d',
    950: '#000000',
  },
}

SCSS

$custom: #66cc3d;
$custom-light: #9adc7a;
$custom-dark: #000000;

JSON

{
  "hex": "#66cc3d",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 61
  },
  "hsl": {
    "h": 102.797,
    "s": 58.367,
    "l": 51.961
  },
  "oklch": {
    "l": 0.75568,
    "c": 0.20192,
    "h": 138.3
  },
  "luminance": 0.46347
}

Semantic roles & 50–950 ramp

primary

#66CC3D

secondary

#C093D2

accent

#46E2B5

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CC3D

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

Preview Lab → · Contrast checker → · Palette generator →