I didn't take his suggestion because I didn't like the tone of his skin.
That sounds pretty racist. Is that really the reason for not listening to him?
I said what I meant to say that I don't listen to dark-skinned people.
That's a seriously messed up thing for you to say. You shouldn't discredit someone because of the tone of their skin. Judge them for who they are as a person, not what they look like.
I will judge people the way that I want to judge them.
You can make judgments about people according to their skin color, but you are using the wrong metric. Evaluate people on their inner character and you will have better luck in life.