You can easily changed your black ssh screen to colorful screen by using following steps.
1) Login to the server via SSH as root
2) Edit the .bash_profile file found in the /root directory & paste the following line:
vi .bash_profile
export PS1="\[$(tput bold)$(tput setb 4)$(tput setaf 7)\]\u@\h:\w $ \[$(tput sgr0)\]"
Save & quit the file
Now re-login through a new/different session to see the fun
You can further more change the various attributes within the given line to try a variety of colours..
Ex: for blue background with command history number, try these:
export PS1='\e[1;31m\]\e[7m[\h - ${VIEW}\u ] [\w]\e[m\]\e[27m\n[\!]$'
Note : Please make sure to leave the current window running & check the changes in a new one