This guide applies specifically to ARGB products. If you have non-ARGB fans, please see this guide here. Let's get started.
The first thing you will want to do is locate on your motherboard or by looking at the box, the manufacturer of your motherboard. Depending on who it is, depends on what software to use. ASUS uses Armory Crate, Gigabyte uses RGB Fusion, MSI uses Dragon Center, and ASROCK uses Polychrome Sync. Each of these programs will have various ways of controlling the ARGB products.
Their program will be responsible for all RGB functions of the fans. ARGB products are specifically made for this use because some users want one program to do everything, rather than use more than 1 software that may not play nicely with others.