#66C845#66C845

#66C845 is a light, vivid green. Relative luminance 0.446; OKLCH L 74.6% C 0.192 H 138.8°. Best body text is #000000 at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#66C845
RGB	rgb(102, 200, 69)
HSL	hsl(105, 54%, 53%)
HSV	hsv(105, 66%, 78%)
CMYK	cmyk(49%, 0%, 65.5%, 21.6%)
CIE-LAB	lab(72.60, -52.38, 54.80)
CIE-LCH	lch(72.60, 75.81, 133.71°)
OKLab	oklab(74.63% -0.1442 0.1262)
OKLCH	oklch(74.63% 0.192 138.8)
XYZ	xyz(27.2069, 44.5611, 12.7966)
Luminance	0.4456 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C845 #A745C8

analogous

#A8C845 #66C845 #45C865

triadic

#66C845 #4566C8 #C84566

tetradic

#66C845 #45A8C8 #A745C8 #C86545

square

#66C845 #45A8C8 #A745C8 #C86545

split-complementary

#66C845 #6545C8 #C845A8

monochromatic

#367121 #4CA02F #66C845 #8DD674 #B4E4A3

Accessibility & contrast

On white

2.12

#66C845 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.91

#66C845 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C845

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C845	#FFFFFF	#000000	##000000
##66C845	1.00	2.12	9.91	9.91
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.91	21.00	1.00	1.00
##000000	9.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB734

Deuteranopia (green-blind)

#C1AF50

Tritanopia (blue-blind)

#5EC1AD

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #66c845;
/* rgb */ color: rgb(102, 200, 69);
/* oklch */ color: oklch(74.6% 0.192 138.8);

Tailwind

colors: {
  custom: {
    50: '#9ad97f',
    500: '#66c845',
    950: '#000000',
  },
}

SCSS

$custom: #66c845;
$custom-light: #9ad97f;
$custom-dark: #000000;

JSON

{
  "hex": "#66c845",
  "rgb": {
    "r": 102,
    "g": 200,
    "b": 69
  },
  "hsl": {
    "h": 104.885,
    "s": 54.357,
    "l": 52.745
  },
  "oklch": {
    "l": 0.74627,
    "c": 0.19161,
    "h": 138.8
  },
  "luminance": 0.44563
}

Semantic roles & 50–950 ramp

primary

#66C845

secondary

#C298D1

accent

#4ADEB9

background

#F9FDF8

surface

#F2FBEF

border

#CCD4CA

text

#0F150A

muted

#7E837C

Preview Lab

Preview with #66C845

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

Preview Lab → · Contrast checker → · Palette generator →