Matching Pairs 811 Color Codes Matching GameOnline version Test your knowledge of 811 color codes and their meanings in this fun matching pairs game! by Grayson Cain 1 Yellow 2 Red 3 Orange 4 Pink 5 Blue 6 Green 7 Purple 8 White Power / Electric Communication - TV / Phone / Internet Proposed excavation Gas - Oil - Steam Temporary survey Sewer & drain lines Reclaimed water Potable Water