#66CB4A#66CB4A

#66CB4A is a light, vivid green. Relative luminance 0.460; OKLCH L 75.4% C 0.192 H 139.5°. Best body text is #000000 at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#66CB4A
RGB	rgb(102, 203, 74)
HSL	hsl(107, 55%, 54%)
HSV	hsv(107, 64%, 80%)
CMYK	cmyk(49.8%, 0%, 63.5%, 20.4%)
CIE-LAB	lab(73.56, -53.08, 53.76)
CIE-LCH	lch(73.56, 75.55, 134.64°)
OKLab	oklab(75.43% -0.1458 0.1245)
OKLCH	oklch(75.43% 0.192 139.5)
XYZ	xyz(28.0704, 46.0290, 13.8826)
Luminance	0.4603 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB4A #AF4ACB

analogous

#A7CB4A #66CB4A #4ACB6F

triadic

#66CB4A #4A66CB #CB4A66

tetradic

#66CB4A #4AA7CB #AF4ACB #CB6F4A

square

#66CB4A #4AA7CB #AF4ACB #CB6F4A

split-complementary

#66CB4A #6F4ACB #CB4AA7

monochromatic

#357823 #4AA830 #66CB4A #8ED97A #B6E6A9

Accessibility & contrast

On white

2.06

#66CB4A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.21

#66CB4A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB4A

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB4A	#FFFFFF	#000000	##000000
##66CB4A	1.00	2.06	10.21	10.21
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.21	21.00	1.00	1.00
##000000	10.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA3A

Deuteranopia (green-blind)

#C3B155

Tritanopia (blue-blind)

#5DC5B0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cb4a;
/* rgb */ color: rgb(102, 203, 74);
/* oklch */ color: oklch(75.4% 0.192 139.5);

Tailwind

colors: {
  custom: {
    50: '#9adc82',
    500: '#66cb4a',
    950: '#000000',
  },
}

SCSS

$custom: #66cb4a;
$custom-light: #9adc82;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb4a",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 74
  },
  "hsl": {
    "h": 106.977,
    "s": 55.365,
    "l": 54.314
  },
  "oklch": {
    "l": 0.75432,
    "c": 0.19173,
    "h": 139.5
  },
  "luminance": 0.46031
}

Semantic roles & 50–950 ramp

primary

#66CB4A

secondary

#C89DD4

accent

#49DFBE

background

#F9FDF8

surface

#F2FBEF

border

#CCD4CA

text

#0F150B

muted

#7E837C

Preview Lab

Preview with #66CB4A

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

Preview Lab → · Contrast checker → · Palette generator →