Excellence of wearing white clothes and the permissibility of wearing red, green, yellow and black clothes made from Cotton, Linen but not Silk

Riyad-us-Saliheen 779
Ibn 'Abbas (May Allah be pleased with them) reported: I heard Messenger of Allah (PBUH) saying, "Put on white clothes because they are the best; and use them for shrouding your dead."

[At-Tirmidhi and Abu Dawud]