666699 #666699

Web Safe Color

Copy-ready color values

HEX#666699

RGBrgb(102, 102, 153)

HSLhsl(240, 20%, 50%)

HSVhsv(240, 33%, 60%)

CMYK approx.cmyk(33, 33, 0, 40)

Color value table

Format	Value	Copy
HEX	`#666699`
RGB	`rgb(102, 102, 153)`
HSL	`hsl(240, 20%, 50%)`
HSV	`hsv(240, 33%, 60%)`
CMYK approx.	`cmyk(33, 33, 0, 40)`
CSS keyword	`666699`

Contrast and classification

DarkLightness5.35:1Contrast with white3.93:1Contrast with blackBlue / CyanColor family

Shade and tint preview

White 10%
#7575A3

White 30%
#9494B8

White 70%
#D1D1E0

White 90%
#F0F0F5

Black 10%
#5C5C8A

Black 30%
#47476B

Black 70%
#1F1F2E

Black 90%
#0A0A0F

Harmony palettes

Complementary

#999966

#B1B18B

Analogous

#666693

#666C93

Triadic

#669966

#996666

Split complementary

#ABAB82

#7D7D54

Using 666699

666699 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-666699: #666699;
}

.button-primary {
  background: var(--color-666699);
  color: #ffffff;
}

$666699: #666699;

// Tailwind arbitrary value
class="bg-[#666699] text-white"