CSS notation

Use this for all CSS properties that accept a color as a value: color, background-color, border-color
#343e40
rgb(52,62,64)
hsl(190, 10%, 23%)

Color spaces

Names and values for each color representation
HSL
Hue190°
Saturation10.34%
Lightness22.75%
HSV / HSB
Hue190°
Saturation18.75%
Value / Brightness25.1%
RGB
Red20.39%
Green24.31%
Blue25.1%
CMYK
Cyan18.75%
Magenta3.13%
Yellow0%
Black74.9%
YCbCr
Y0.23
Cb0.01
Cr-0.02

Nearest Colors Name

Most similar colors in standard

Color Harmonies

Schemes of colors that work well together
Complementary Harmony Color Scheme of #343e40

Complementary

Create the strongest contrast.
Triad Harmony Color Scheme of #343e40

Triad

Let one color dominate and use the other two for the accent.
Square Harmony Color Scheme of #343e40

Square

Balance between warm and cool colors.
Adjacent Harmony Color Scheme of #343e40

Adjacent / Analogous / Analogic

Pleasing and harmonious to the eye, they can be found in nature.
Split Complementary Harmony Color Scheme of #343e40

Split Complementary

Low tension, strong visual contrast.
Rectangle Tetradic Harmony Color Scheme of #343e40

Rectangle / Tetradic

Two complementary pairs for a total of four colors.

Tints, Shades, and Tones

Tints of color #343e40

Tints

A tint is obtained by adding white to a color. This process reduces darkness.
Shades of color #343e40

Shades

A shade is obtained by adding black to a color. This process increases darkness.
Tones of color #343e40

Tones

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