ChatBox Color Change

Hi i want to change a color of few things in chat box, i found how to delete a background but i was not able to find other changes.

So ive put a numbers in the image. Want to change 1 2 3 background colours. What should i do in CSS ? Or what is the code to change that

Here is the image:
https://2img.net/h/i1090.photobucket.com/albums/i376/CieniuPL/Color_zps9afcf072.png

Regards
Cien

Your forum Version and Forum URL?

Also, check this out.
http://help.forumotion.com/t77136-customize-chatbox

It is PunBB

Link:
http://pokehelvetti.forumpl.net/

I tried from that customize but dont worked or i just made something wrong.

Add this to your css & check.
1)

Code:

#onlinechat {
    background-color: #ff0000 !important;
}

2)

Code:

#chatbox_header.main-head {
    background-color: #fff000 !important;
}

3)

Code:

#chatbox_members .member-title{
    background-color: #fff000 !important;
}

Thanks once again for help. Everything is solved