HP lists this spare part number for the HP Chromebook x360 11 G4 Education Edition in its Maintenance and Service Guide (printed p.11).
Source notes
HP Maintenance and Service Guide for the HP Chromebook x360 11 G4 Education Edition, spare parts table, printed p.11: "Nautical blue M47227-001". Read from the cached HP manual (via FDY-MM-016-H6).