There were a couple of posts regarding what colour will neutralize another colour. You can refer to this colour wheel or any colour wheel to find out!
The complimentary colour (opposing colour) neutralizes. For example, if you have too much orange, add a little blue. Keep in mind that neutralizing one colour with another are all leading towards beige (yellow + blue + red = brown). If you add too much, it will become muddy and it'll become garbage so always start with a very very small amount and add a little at a time til you get the colour you want.
The complimentary colour (opposing colour) neutralizes. For example, if you have too much orange, add a little blue. Keep in mind that neutralizing one colour with another are all leading towards beige (yellow + blue + red = brown). If you add too much, it will become muddy and it'll become garbage so always start with a very very small amount and add a little at a time til you get the colour you want.