CSS notation

Use this for all CSS properties that accept a color as a value: color, background-color, border-color
#0000a1
rgb(0,0,161)
hsl(240, 100%, 32%)

Color spaces

Names and values for each color representation
HSL
Hue240°
Saturation100%
Lightness31.57%
HSV / HSB
Hue240°
Saturation100%
Value / Brightness63.14%
RGB
Red0%
Green0%
Blue63.14%
CMYK
Cyan100%
Magenta100%
Yellow0%
Black36.86%
YCbCr
Y0.07
Cb0.32
Cr-0.05

Nearest Colors Name

Most similar colors in standard

Color Harmonies

Schemes of colors that work well together
Complementary Harmony Color Scheme of #0000a1

Complementary

Create the strongest contrast.
Triad Harmony Color Scheme of #0000a1

Triad

Let one color dominate and use the other two for the accent.
Square Harmony Color Scheme of #0000a1

Square

Balance between warm and cool colors.
Adjacent Harmony Color Scheme of #0000a1

Adjacent / Analogous / Analogic

Pleasing and harmonious to the eye, they can be found in nature.
Split Complementary Harmony Color Scheme of #0000a1

Split Complementary

Low tension, strong visual contrast.
Rectangle Tetradic Harmony Color Scheme of #0000a1

Rectangle / Tetradic

Two complementary pairs for a total of four colors.

Tints, Shades, and Tones

Tints of color #0000a1

Tints

A tint is obtained by adding white to a color. This process reduces darkness.
Shades of color #0000a1

Shades

A shade is obtained by adding black to a color. This process increases darkness.
Tones of color #0000a1

Tones

A tone is produced either by mixing a color with grey, or by both tinting and shading.