The Prophet (ﷺ) used to wear tanned leather sandals and dye his beard yellow with wars and saffron, and Ibn 'Umar used to do that too.
Sunan Abi Dawud Book 35, Hadith 52
← Previous Hadith He did not dye his hair, but Abu Bakr and 'Umar dyed their hair.

Sunan Abi Dawud Book 35, Hadith 51 Next Hadith → When a man who had dyed himself with henna passed by the Prophet (ﷺ), he said: How fine this is! When another man who had dyed himself with henna and katam passed by, he said: This is better than that. Then another man who had dyed himself with yellow dye, passed by, he said: This is better than all that.

Sunan Abi Dawud Book 35, Hadith 53