Headings

Hello! Can anyone tell me if it is possible to change the colour of a numbered heading hierarchy between sections? For example, same level headings of 1. Section 1 heading needs to be aqua; 2. Section 2 heading needs to be dark blue; 3. Section 3 heading needs to be green, etc. If I change the colour of the text, the colour of the number remains the same as for the previous section. I am sure there is something obvious I am missing!! Any advice greatly appreciated!