The list of colors for mirc4.7 :).
0=white
1=black
2=dk blue
3=green
4=red
5=brown
6=purple
7=orange
8=yellow
9=lt green
10=cyan
11=lt blue
12=blue
13=lavender
14=gray
15=lt gray
To use the colors you just hold down ctrl, hit k, and the number of the color you want. Then space and your message. (ctrl/k 13 hello).
To underline you just hit ctrl u and your message.
To bold you just hit ctrl b and your message.
To underline or bold a color hit the color first then the bold or underline. (ctrl k 8 ctrl b hello)
To make words and different color background hit ctrl k number, number space message. (ctrl k 9,8 message).