#66DA4A#66DA4A

#66DA4A is a light, highly saturated green. Relative luminance 0.535; OKLCH L 79.2% C 0.210 H 140.0°. Best body text is #000000 at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#66DA4A
RGB	rgb(102, 218, 74)
HSL	hsl(108, 66%, 57%)
HSV	hsv(108, 66%, 85%)
CMYK	cmyk(53.2%, 0%, 66.1%, 14.5%)
CIE-LAB	lab(78.15, -58.74, 58.75)
CIE-LCH	lch(78.15, 83.08, 135.00°)
OKLab	oklab(79.2% -0.1611 0.1351)
OKLCH	oklch(79.2% 0.21 140)
XYZ	xyz(31.7856, 53.4594, 15.1210)
Luminance	0.5346 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DA4A #BE4ADA

analogous

#AEDA4A #66DA4A #4ADA76

triadic

#66DA4A #4A66DA #DA4A66

tetradic

#66DA4A #4AAEDA #BE4ADA #DA764A

square

#66DA4A #4AAEDA #BE4ADA #DA764A

split-complementary

#66DA4A #764ADA #DA4AAE

monochromatic

#338D1D #45C027 #66DA4A #91E47D #BCEFB0

Accessibility & contrast

On white

1.80

#66DA4A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.69

#66DA4A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DA4A

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DA4A	#FFFFFF	#000000	##000000
##66DA4A	1.00	1.80	11.69	11.69
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.69	21.00	1.00	1.00
##000000	11.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C737

Deuteranopia (green-blind)

#D1BE57

Tritanopia (blue-blind)

#59D3BD

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66da4a;
/* rgb */ color: rgb(102, 218, 74);
/* oklch */ color: oklch(79.2% 0.210 140.0);

Tailwind

colors: {
  custom: {
    50: '#9ce683',
    500: '#66da4a',
    950: '#000000',
  },
}

SCSS

$custom: #66da4a;
$custom-light: #9ce683;
$custom-dark: #000000;

JSON

{
  "hex": "#66da4a",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 74
  },
  "hsl": {
    "h": 108.333,
    "s": 66.055,
    "l": 57.255
  },
  "oklch": {
    "l": 0.79201,
    "c": 0.21026,
    "h": 140
  },
  "luminance": 0.53462
}

Semantic roles & 50–950 ramp

primary

#66DA4A

secondary

#803692

accent

#3FE9C8

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66DA4A

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

Preview Lab → · Contrast checker → · Palette generator →