Hey, are you okay? If you're actually having those kinds of thoughts, please seek help. Call the hotline number. I may not know your situation but life isn't as bad as ya think. It'll be worth it in the long run, so please don't do anything rash. You being gone would cause more grief and pain to the people who care about you. So please, keep fighting.
I think the answer is maybe sound of the surf or produced may recorded live
The three primary colors are red yellow and blue, so the only option that would work would be yellow! I hope this helps! :)
Thomas Edison and William Dickson