#66C445#66C445

#66C445 is a light, vivid green. Relative luminance 0.427; OKLCH L 73.6% C 0.187 H 138.6°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#66C445
RGB	rgb(102, 196, 69)
HSL	hsl(104, 52%, 52%)
HSV	hsv(104, 65%, 77%)
CMYK	cmyk(48%, 0%, 64.8%, 23.1%)
CIE-LAB	lab(71.37, -50.82, 53.46)
CIE-LCH	lch(71.37, 73.76, 133.55°)
OKLab	oklab(73.62% -0.1399 0.1234)
OKLCH	oklch(73.62% 0.187 138.6)
XYZ	xyz(26.2927, 42.7325, 12.4918)
Luminance	0.4273 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C445 #A345C4

analogous

#A6C445 #66C445 #45C463

triadic

#66C445 #4566C4 #C44566

tetradic

#66C445 #45A6C4 #A345C4 #C46345

square

#66C445 #45A6C4 #A345C4 #C46345

split-complementary

#66C445 #6345C4 #C445A6

monochromatic

#366C22 #4D9B31 #66C445 #8CD373 #B2E1A2

Accessibility & contrast

On white

2.20

#66C445 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.55

#66C445 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C445

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C445	#FFFFFF	#000000	##000000
##66C445	1.00	2.20	9.55	9.55
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.55	21.00	1.00	1.00
##000000	9.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAB435

Deuteranopia (green-blind)

#BDAC50

Tritanopia (blue-blind)

#5FBEAA

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #66c445;
/* rgb */ color: rgb(102, 196, 69);
/* oklch */ color: oklch(73.6% 0.187 138.6);

Tailwind

colors: {
  custom: {
    50: '#99d67e',
    500: '#66c445',
    950: '#000000',
  },
}

SCSS

$custom: #66c445;
$custom-light: #99d67e;
$custom-dark: #000000;

JSON

{
  "hex": "#66c445",
  "rgb": {
    "r": 102,
    "g": 196,
    "b": 69
  },
  "hsl": {
    "h": 104.409,
    "s": 51.837,
    "l": 51.961
  },
  "oklch": {
    "l": 0.73618,
    "c": 0.18656,
    "h": 138.6
  },
  "luminance": 0.42734
}

Semantic roles & 50–950 ramp

primary

#66C445

secondary

#C097CE

accent

#4DDBB6

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F140A

muted

#7E837C

Preview Lab

Preview with #66C445

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

Preview Lab → · Contrast checker → · Palette generator →