## About sequence logo colors:

The amino acid colors in sequence logos help visualize the chemical and physical properties of specific positions and areas in the Block. Amino acids each have a number of different properties. Thus there are several ways to group amino acids.

In the file defining the colors of the logo characters, lines that begin with an asterisk [*] are comment lines. Other lines define a character color. Each such line contain 4 parameters - the character defined and its red, green and blue (RGB) components defining its color. The RGB values are real values between 0 and 1. A value of 0 means black and a value of 1 means the most bright. Characters which are not defined will be black.

You can view the color files used:

- Default colors file
- Alternate colors 1
- Alternate colors 2
- Alternate colors 3

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Page last modified on <MODIFICATION_DATE>July 1995</MODIFICATION_DATE>