66ff66 #66FF66

Web Safe Color

Copy-ready color values

HEX#66FF66

RGBrgb(102, 255, 102)

HSLhsl(120, 100%, 70%)

HSVhsv(120, 60%, 100%)

CMYK approx.cmyk(60, 0, 60, 0)

Color value table

Format	Value	Copy
HEX	`#66FF66`
RGB	`rgb(102, 255, 102)`
HSL	`hsl(120, 100%, 70%)`
HSV	`hsv(120, 60%, 100%)`
CMYK approx.	`cmyk(60, 0, 60, 0)`
CSS keyword	`66ff66`

Contrast and classification

LightLightness1.31:1Contrast with white16.06:1Contrast with blackGreen / TealColor family

Shade and tint preview

White 10%
#75FF75

White 30%
#94FF94

White 70%
#D1FFD1

White 90%
#F0FFF0

Black 10%
#5CE65C

Black 30%
#47B347

Black 70%
#1F4D1F

Black 90%
#0A1A0A

Harmony palettes

Complementary

#990099

#B13DB1

Analogous

#78FF66

#66ED78

Triadic

#FF6666

#6666FF

Split complementary

#AB2EAB

#7D007D

Using 66ff66

66ff66 works best when it is chosen with contrast, surrounding colors, and interface state in mind. Use the HEX value for static CSS, RGB when you need channel-level control, and HSL when adjusting lightness or saturation for hover states. The CMYK value is an approximate screen-to-print conversion, so print workflows should still rely on calibrated design software or a printer profile.

CSS, SCSS, and Tailwind examples

:root {
  --color-66ff66: #66ff66;
}

.button-primary {
  background: var(--color-66ff66);
  color: #000000;
}

$66ff66: #66ff66;

// Tailwind arbitrary value
class="bg-[#66ff66] text-white"