#66ED4A#66ED4A

#66ED4A is a very light, highly saturated green. Relative luminance 0.639; OKLCH L 84.0% C 0.233 H 140.5°. Best body text is #000000 at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#66ED4A
RGB	rgb(102, 237, 74)
HSL	hsl(110, 82%, 61%)
HSV	hsv(110, 69%, 93%)
CMYK	cmyk(57%, 0%, 68.8%, 7.1%)
CIE-LAB	lab(83.91, -65.55, 64.86)
CIE-LCH	lch(83.91, 92.21, 135.31°)
OKLab	oklab(83.95% -0.1795 0.1479)
OKLCH	oklch(83.95% 0.233 140.5)
XYZ	xyz(36.9980, 63.8843, 16.8584)
Luminance	0.6389 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ED4A #D14AED

analogous

#B8ED4A #66ED4A #4AED7F

triadic

#66ED4A #4A66ED #ED4A66

tetradic

#66ED4A #4AB8ED #D14AED #ED7F4A

square

#66ED4A #4AB8ED #D14AED #ED7F4A

split-complementary

#66ED4A #7F4AED #ED4AB8

monochromatic

#2CAC11 #3AE317 #66ED4A #95F382 #C4F8B9

Accessibility & contrast

On white

1.52

#66ED4A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.78

#66ED4A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ED4A

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ED4A	#FFFFFF	#000000	##000000
##66ED4A	1.00	1.52	13.78	13.78
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.78	21.00	1.00	1.00
##000000	13.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3D831

Deuteranopia (green-blind)

#E2CD5A

Tritanopia (blue-blind)

#54E6CC

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66ed4a;
/* rgb */ color: rgb(102, 237, 74);
/* oklch */ color: oklch(84.0% 0.233 140.5);

Tailwind

colors: {
  custom: {
    50: '#9ff485',
    500: '#66ed4a',
    950: '#000000',
  },
}

SCSS

$custom: #66ed4a;
$custom-light: #9ff485;
$custom-dark: #000000;

JSON

{
  "hex": "#66ed4a",
  "rgb": {
    "r": 102,
    "g": 237,
    "b": 74
  },
  "hsl": {
    "h": 109.693,
    "s": 81.91,
    "l": 60.98
  },
  "oklch": {
    "l": 0.8395,
    "c": 0.23263,
    "h": 140.5
  },
  "luminance": 0.63888
}

Semantic roles & 50–950 ramp

primary

#66ED4A

secondary

#972FAC

accent

#07DEB9

background

#FDFFFC

surface

#F7FEF3

border

#D0D6CD

text

#10170C

muted

#81857F

Preview Lab

Preview with #66ED4A

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

Preview Lab → · Contrast checker → · Palette generator →