Web Safe Color

Copy-ready color values

HEX#000066
RGBrgb(0, 0, 102)
HSLhsl(240, 100%, 20%)
HSVhsv(240, 100%, 40%)
CMYK approx.cmyk(100, 100, 0, 60)

Color value table

FormatValueCopy
HEX#000066
RGBrgb(0, 0, 102)
HSLhsl(240, 100%, 20%)
HSVhsv(240, 100%, 40%)
CMYK approx.cmyk(100, 100, 0, 60)
CSS keyword000066

Contrast and classification

DarkLightness17.62:1Contrast with white1.19:1Contrast with blackBlue / CyanColor family

Shade and tint preview

White 10%
#1A1A75

White 30%
#4D4D94

White 70%
#B3B3D1

White 90%
#E6E6F0

Black 10%
#00005C

Black 30%
#000047

Black 70%
#00001F

Black 90%
#00000A

Harmony palettes

Complementary

#FFFF99
#FFFFB1

Analogous

#00005A
#000C5A

Triadic

#006600
#660000

Split complementary

#FFFFAB
#D1D17D

Using 000066

000066 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-000066: #000066;
}

.button-primary {
  background: var(--color-000066);
  color: #ffffff;
}

$000066: #000066;

// Tailwind arbitrary value
class="bg-[#000066] text-white"