CSS HEX Colors
A hexadecimal color is specified with: #RRGGBB, where the RR
(red), GG (green) and BB (blue) hexadecimal integers specify the components of
the color.
HEX Value
In CSS, a color can be specified using a hexadecimal value in the form:
#rrggbb
Where rr (red), gg (green) and bb (blue) are hexadecimal values between 00 and ff (same as decimal 0-255).
For example, #ff0000 is displayed as red, because red is set to its highest value (ff) and the others are set to
the lowest value (00).
To display black, set all values to 00, like this: #000000.
To display white, set all values to ff, like
this: #ffffff.
Experiment by mixing the HEX values below:
RED
ff
GREEN
0
BLUE
0
Example
#ff0000
#0000ff
#3cb371
#ee82ee
#ffa500
#6a5acd
Try it Yourself »
Shades of gray are often defined using equal values for all the 3 light sources:
Example
#3c3c3c
#616161
#787878
#b4b4b4
#f0f0f0
#f9f9f9
Try it Yourself »
3 Digit HEX Value
Sometimes you will see a 3-digit hex code in the CSS source.
The 3-digit hex code is a shorthand for some 6-digit hex codes.
The 3-digit hex code has the following form:
#rgb
Where r, g, and b represent the red, green, and blue components with values between 0 and f.
The 3-digit hex code can only be used when both the values (RR, GG, and BB) are the same for
each component. So, if we have #ff00cc, it can be written like this: #f0c.
Here is an example:
Example
body { background-color: #fc9; /* same as #ffcc99 */}h1 {
color: #f0f; /* same as #ff00ff */}p {
color: #b58; /* same as #bb5588 */}
Try it Yourself »
★
+1
Reference: https://www.w3schools.com/css/css_colors_hex.asp