What's the literary device for something like "hot sound" or "loud pink"?

Question

what's the literary device where you use an adjective of a different sense than the noun? examples are "hot sound" and "loud pink"? i used to know the term, but i forget!

Answer 1

personification?

just a guess

Answer 2

I don't know. The closest I can get it synesthesia, which is when you see colors when you hear numbers, things like that.

I don't think personaification is it. It's not onomotopoeia, either...