#66CB3C#66CB3C

#66CB3C is a light, highly saturated green. Relative luminance 0.459; OKLCH L 75.3% C 0.201 H 138.1°. Best body text is #000000 at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#66CB3C
RGB	rgb(102, 203, 60)
HSL	hsl(102, 58%, 52%)
HSV	hsv(102, 70%, 80%)
CMYK	cmyk(49.8%, 0%, 70.4%, 20.4%)
CIE-LAB	lab(73.46, -54.28, 59.23)
CIE-LCH	lch(73.46, 80.34, 132.50°)
OKLab	oklab(75.31% -0.1499 0.1344)
OKLCH	oklch(75.31% 0.201 138.1)
XYZ	xyz(27.6501, 45.8609, 11.6691)
Luminance	0.4586 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB3C #A13CCB

analogous

#ADCB3C #66CB3C #3CCB5A

triadic

#66CB3C #3C66CB #CB3C66

tetradic

#66CB3C #3CADCB #A13CCB #CB5A3C

square

#66CB3C #3CADCB #A13CCB #CB5A3C

split-complementary

#66CB3C #5A3CCB #CB3CAD

monochromatic

#366F1E #4D9F2A #66CB3C #8CD86C #B2E59D

Accessibility & contrast

On white

2.06

#66CB3C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.17

#66CB3C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB3C

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB3C	#FFFFFF	#000000	##000000
##66CB3C	1.00	2.06	10.17	10.17
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.17	21.00	1.00	1.00
##000000	10.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA25

Deuteranopia (green-blind)

#C4B14A

Tritanopia (blue-blind)

#5EC4AF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66cb3c;
/* rgb */ color: rgb(102, 203, 60);
/* oklch */ color: oklch(75.3% 0.201 138.1);

Tailwind

colors: {
  custom: {
    50: '#9adc7a',
    500: '#66cb3c',
    950: '#000000',
  },
}

SCSS

$custom: #66cb3c;
$custom-light: #9adc7a;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb3c",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 60
  },
  "hsl": {
    "h": 102.378,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.75307,
    "c": 0.20134,
    "h": 138.1
  },
  "luminance": 0.45863
}

Semantic roles & 50–950 ramp

primary

#66CB3C

secondary

#BE92D1

accent

#47E1B4

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CB3C

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

Preview Lab → · Contrast checker → · Palette generator →