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. (Using translation from Abū Dāʾūd 4210)
«كَانَ النَّبِيُّ ﷺ يَلْبَسُ النِّعَالَ السِّبْتِيَّةَ وَيُصَفِّرُ لِحْيَتَهُ بِالْوَرْسِ وَالزَّعْفَرَانِ وَكَانَ ابْنُ عُمَرَ يَفْعَلُ ذَلِكَ»