#66CE4A#66CE4A

#66CE4A is a light, vivid green. Relative luminance 0.475; OKLCH L 76.2% C 0.196 H 139.6°. Best body text is #000000 at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#66CE4A
RGB	rgb(102, 206, 74)
HSL	hsl(107, 57%, 55%)
HSV	hsv(107, 64%, 81%)
CMYK	cmyk(50.5%, 0%, 64.1%, 19.2%)
CIE-LAB	lab(74.48, -54.24, 54.77)
CIE-LCH	lch(74.48, 77.08, 134.72°)
OKLab	oklab(76.19% -0.1489 0.1267)
OKLCH	oklch(76.19% 0.196 139.6)
XYZ	xyz(28.7857, 47.4597, 14.1210)
Luminance	0.4746 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CE4A #B24ACE

analogous

#A8CE4A #66CE4A #4ACE70

triadic

#66CE4A #4A66CE #CE4A66

tetradic

#66CE4A #4AA8CE #B24ACE #CE704A

square

#66CE4A #4AA8CE #B24ACE #CE704A

split-complementary

#66CE4A #704ACE #CE4AA8

monochromatic

#357C22 #49AC2F #66CE4A #8FDB7A #B7E8AA

Accessibility & contrast

On white

2.00

#66CE4A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.49

#66CE4A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CE4A

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CE4A	#FFFFFF	#000000	##000000
##66CE4A	1.00	2.00	10.49	10.49
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.49	21.00	1.00	1.00
##000000	10.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BD3A

Deuteranopia (green-blind)

#C6B455

Tritanopia (blue-blind)

#5CC7B3

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66ce4a;
/* rgb */ color: rgb(102, 206, 74);
/* oklch */ color: oklch(76.2% 0.196 139.6);

Tailwind

colors: {
  custom: {
    50: '#9ade82',
    500: '#66ce4a',
    950: '#000000',
  },
}

SCSS

$custom: #66ce4a;
$custom-light: #9ade82;
$custom-dark: #000000;

JSON

{
  "hex": "#66ce4a",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 74
  },
  "hsl": {
    "h": 107.273,
    "s": 57.391,
    "l": 54.902
  },
  "oklch": {
    "l": 0.76187,
    "c": 0.19551,
    "h": 139.6
  },
  "luminance": 0.47462
}

Semantic roles & 50–950 ramp

primary

#66CE4A

secondary

#CA9ED6

accent

#47E1C0

background

#FAFDF8

surface

#F3FBEF

border

#CDD4CA

text

#0F150B

muted

#7F837C

Preview Lab

Preview with #66CE4A

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

Preview Lab → · Contrast checker → · Palette generator →