# Hexadecimal Value

suggest change## Background

CSS colors may also be represented as a hex triplet, where the members represent the red, green and blue components of a color. Each of these values represents a number in the range of `00`

to `FF`

, or `0`

to `255`

in decimal notation. Uppercase and/or lowercase Hexidecimal values may be used (i.e. `#3fc`

= `#3FC`

= `#33ffCC`

). The browser interprets `#369`

as `#336699`

. If that is not what you intended but rather wanted `#306090`

, you need to specify that explicitly.

The total number of colors that can be represented with hex notation is 256 ^ 3 or 16,777,216.

## Syntax

color: #rrggbb; color: #rgb

Value | Description |
—— | —— |`rr`

| `00`

- `FF`

for the amount of red |`gg`

| `00`

- `FF`

for the amount of green |`bb`

| `00`

- `FF`

for the amount of blue |

.some-class { /* This is equivalent to using the color keyword 'blue' */ color: #0000FF; } .also-blue { /* If you want to specify each range value with a single number, you can! This is equivalent to '#0000FF' (and 'blue') */ color: #00F; }

Hexadecimal notation is used to specify color values in the RGB color format, per the W3C’s ‘Numerical color values’.

There are a lot of tools available on the Internet for looking up hexadecimal (or simply hex) color values.

Search for “**hex color palette**” or “**hex color picker**” with your favorite web browser to find a bunch of options!

Hex values always start with a pound sign (#), are up to six “digits” long, and are case-insensitive: that is, they don’t care about capitalization. `#FFC125`

and `#ffc125`

are the same color.