RGB Keyboard problem

I have an EPOMAKER AULA F75 keyboard. I was testing a color in the software when I noticed that the ALT key was with wrong colors. The blue was a little off, the purple had a pinkish tone that I had tested in the software, the white was yellow, and the light blue had a greenish tone (this is only on the ALT key; the rest of the keys are normal).

What can I do to fix this?