//Chat's color changer
alias green "con_color 0+255+0"
alias red "con_color 255+0+0"
alias yellow "con_color 255+255+0"
alias blue "con_color 0+0+255"
alias white "con_color 255+255+255"
alias black "con_color 0+0+0"
alias original "con_color 255+180+30"
alias color "cl1"
alias cl1 "green; alias color cl2"
alias cl2 "red; alias color cl3"
alias cl3 "yellow; alias color cl4"
alias cl4 "blue; alias color cl5"
alias cl5 "white; alias color cl6"
alias cl6 "black; alias color cl7"
alias cl7 "original; alias color cl1"

Bind "C" "color"
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In the "config" file:
Bind "C" "color"

Or, writh in the commandmenu:
"#number" "Change Chat Color" "color"