CSS RGB Colors

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CSS RGB Colors


An RGB color value represents RED, GREEN, and BLUE light
sources.

RGB Value
In CSS, a color can be specified as an RGB value, using this formula:
rgb(red, green, blue)
Each parameter (red, green, and
blue) defines the intensity of the color between 0 and 255.
For example, rgb(255, 0, 0) is displayed as red,
because red is set to its highest value (255) and the others are
set to 0.
To display black, set all color parameters to 0, like this: rgb(0, 0, 0).
To display white, set all color parameters to 255, like
this: rgb(255, 255, 255).
Experiment by mixing the RGB values below:





 






RED

255


GREEN

0


BLUE

0




Example



rgb(255, 0, 0)


rgb(0, 0, 255)


rgb(60, 179, 113)


rgb(238, 130, 238)


rgb(255, 165, 0)


rgb(106, 90, 205)




Try it Yourself »

Shades of gray are often defined using equal values for all the 3 light sources:

Example



rgb(60, 60, 60)


rgb(90, 90, 90)


rgb(120, 120, 120)


rgb(180, 180, 180)


rgb(210, 210, 210)


rgb(240, 240, 240)




Try it Yourself »








RGBA Value
RGBA color values are an extension of RGB color values with an alpha channel
- which specifies the opacity for a color.
An RGBA color value is
specified with:
rgba(red, green, blue,
alpha)
The alpha parameter is a number
between 0.0 (fully transparent) and 1.0 (not transparent at all):
Experiment by mixing the RGBA values below:





 






RED

255


GREEN

0


BLUE

0


ALPHA

0




Example



rgba(255, 99, 71, 0)


rgba(255, 99, 71, 0.2)


rgba(255, 99, 71, 0.4)


rgba(255, 99, 71, 0.6)


rgba(255, 99, 71, 0.8)


rgba(255, 99, 71, 1)




Try it Yourself »














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Reference: https://www.w3schools.com/css/css_colors_rgb.asp