How to make boot text colorfull

I want to make my boot text with colors. I just tried to print [ OK ] in green. I edited the lsb-base-loggin.sh as followed but it only works fine when pc is going to halt(Shutting down). But in the boot , it only colors the OK in front of apparmour. Is this a bug or somthing I am doing incorrect. I am using Ubuntu 13.04

lsb-base-logging.sh:

log_end_msg () {
        if [ -z "$1" ]; then
            return 1
        fi

        if [ "$COL" ] && [ -x "$TPUT" ]; then
            # If plymouth is running, print previously stored output
            # to avoid buffering problems (LP: #752393)
            if log_use_plymouth; then
                if [ -n "$LOG_DAEMON_MSG" ]; then
                    log_daemon_msg $LOG_DAEMON_MSG
                    LOG_DAEMON_MSG=""
                fi
            fi

            printf "\r"
            $TPUT hpa $COL
            if [ "$1" -eq 0 ]; then
                $TPUT setaf 4 # blue
                printf '[ '
                $TPUT setaf 2 # green
                printf OK
                $TPUT setaf 4 # blue
                echo ' ]'
                $TPUT op # normal
            else
                printf '['
                $TPUT setaf 1 # red
                printf fail
                $TPUT op # normal
                echo ']'
            fi
        else
            if [ "$1" -eq 0 ]; then
                echo " ...done."
            else
                echo " ...fail!"
            fi
        fi
        return $1
    }

Boot log: http://i.stack.imgur.com/2zOi6.png