#66F563#66F563

#66F563 is a very light, highly saturated green. Relative luminance 0.690; OKLCH L 86.2% C 0.225 H 143.0°. Best body text is #000000 at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#66F563
RGB	rgb(102, 245, 99)
HSL	hsl(119, 88%, 67%)
HSV	hsv(119, 60%, 96%)
CMYK	cmyk(58.4%, 0%, 59.6%, 3.9%)
CIE-LAB	lab(86.52, -66.00, 57.65)
CIE-LCH	lch(86.52, 87.63, 138.87°)
OKLab	oklab(86.17% -0.1795 0.1353)
OKLCH	oklch(86.17% 0.225 143)
XYZ	xyz(40.3818, 69.0267, 22.9974)
Luminance	0.6903 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F563 #F263F5

analogous

#AFF563 #66F563 #63F5A9

triadic

#66F563 #6366F5 #F56366

tetradic

#66F563 #63AFF5 #F263F5 #F5A963

square

#66F563 #63AFF5 #F263F5 #F5A963

split-complementary

#66F563 #A963F5 #F563AF

monochromatic

#11D00D #2EF129 #66F563 #9EF99D #D7FCD6

Accessibility & contrast

On white

1.42

#66F563 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.81

#66F563 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F563

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F563	#FFFFFF	#000000	##000000
##66F563	1.00	1.42	14.81	14.81
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.81	21.00	1.00	1.00
##000000	14.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FAE053

Deuteranopia (green-blind)

#E8D46F

Tritanopia (blue-blind)

#4DEED6

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66f563;
/* rgb */ color: rgb(102, 245, 99);
/* oklch */ color: oklch(86.2% 0.225 143.0);

Tailwind

colors: {
  custom: {
    50: '#9ff994',
    500: '#66f563',
    950: '#000000',
  },
}

SCSS

$custom: #66f563;
$custom-light: #9ff994;
$custom-dark: #000000;

JSON

{
  "hex": "#66f563",
  "rgb": {
    "r": 102,
    "g": 245,
    "b": 99
  },
  "hsl": {
    "h": 118.767,
    "s": 87.952,
    "l": 67.451
  },
  "oklch": {
    "l": 0.86171,
    "c": 0.22472,
    "h": 143
  },
  "luminance": 0.6903
}

Semantic roles & 50–950 ramp

primary

#66F563

secondary

#C930CC

accent

#01E5E0

background

#FDFFFC

surface

#F7FFF5

border

#D0D7CF

text

#10170D

muted

#81857F

Preview Lab

Preview with #66F563

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

Preview Lab → · Contrast checker → · Palette generator →