colors_in_c_v1.c

/*

    colors_in_c_v1.c

COLOR [attr]

  attr        Specifies color attribute of console output

Color attributes are specified by TWO hex digits -- the first
corresponds to the background; the second the foreground.  Each digit
can be any of the following values:

    background      foreground

    0 = Black       8 = Gray
    1 = Blue        9 = Light Blue
    2 = Green       A = Light Green
    3 = Aqua        B = Light Aqua
    4 = Red         C = Light Red
    5 = Purple      D = Light Purple
    6 = Yellow      E = Light Yellow
    7 = White       F = Bright White

If no argument is given, this command restores the color to what it was
when CMD.EXE started.  This value either comes from the current console
window, the /T command line switch or from the DefaultColor registry
value.

The COLOR command sets ERRORLEVEL to 1 if an attempt is made to execute
the COLOR command with a foreground and background color that are the
same.

Example: "COLOR fc" produces light red on bright white

 system("COLOR FC");
foreground
Example: for blue color of letters write

 system("COLOR  1");

*/

#include <stdio.h>
#include <stdlib.h>

int main (void)
{
    int background, foreground;
    char color[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
                      'A', 'B', 'C', 'D', 'E', 'F'};
    char command[10];

    for(background=0; background<16; background++)
        for(foreground=0; foreground<16; foreground++)
        {
            sprintf(command,"COLOR %c%c",color[background],color[foreground]);
            system(command);
            printf ("\n %s ", command);
            printf ("\n");
            _getch();
        }

    system("COLOR 07");     // reset colors

    return 0;
}