#66BE40#66BE40

#66BE40 is a light, vivid green. Relative luminance 0.400; OKLCH L 72.1% C 0.183 H 137.7°. Best body text is #000000 at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#66BE40
RGB	rgb(102, 190, 64)
HSL	hsl(102, 50%, 50%)
HSV	hsv(102, 66%, 75%)
CMYK	cmyk(46.3%, 0%, 66.3%, 25.5%)
CIE-LAB	lab(69.48, -48.89, 53.49)
CIE-LCH	lch(69.48, 72.47, 132.42°)
OKLab	oklab(72.05% -0.135 0.1228)
OKLCH	oklch(72.05% 0.183 137.7)
XYZ	xyz(24.8176, 40.0202, 11.2665)
Luminance	0.4002 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BE40 #9840BE

analogous

#A5BE40 #66BE40 #40BE59

triadic

#66BE40 #4066BE #BE4066

tetradic

#66BE40 #40A5BE #9840BE #BE5940

square

#66BE40 #40A5BE #9840BE #BE5940

split-complementary

#66BE40 #5940BE #BE40A5

monochromatic

#356221 #4D9031 #66BE40 #8ACE6D #AFDD9B

Accessibility & contrast

On white

2.33

#66BE40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.00

#66BE40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BE40

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BE40	#FFFFFF	#000000	##000000
##66BE40	1.00	2.33	9.00	9.00
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.00	21.00	1.00	1.00
##000000	9.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AE2F

Deuteranopia (green-blind)

#B8A74B

Tritanopia (blue-blind)

#60B8A4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #66be40;
/* rgb */ color: rgb(102, 190, 64);
/* oklch */ color: oklch(72.1% 0.183 137.7);

Tailwind

colors: {
  custom: {
    50: '#99d27b',
    500: '#66be40',
    950: '#000000',
  },
}

SCSS

$custom: #66be40;
$custom-light: #99d27b;
$custom-dark: #000000;

JSON

{
  "hex": "#66be40",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 64
  },
  "hsl": {
    "h": 101.905,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.72054,
    "c": 0.18255,
    "h": 137.7
  },
  "luminance": 0.40022
}

Semantic roles & 50–950 ramp

primary

#66BE40

secondary

#B890C9

accent

#4FD9AF

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0E140A

muted

#7E837C

Preview Lab

Preview with #66BE40

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

Preview Lab → · Contrast checker → · Palette generator →