Harry: Light blue
Ron: Baby pink
Hermione: Yellow
Mattheo: Black
Oliver: Orange
Neville: Dark purple
Fred: Hot pink
George: Red
Draco: Light brown
Cedric: White
Tom: Really dark green
Luna: Lavendar
Ginny: Clear polish
Percy: Silver
Viktor: Yellow
Adrian: Green
Snape: Ash gray
Remus: Pink
Regulus: Blue
Sirius: Black
James: White
Lucius: Red
Peter: Orange
Tonks: Glitter polish
Roger: Gold
Theo: Purple
Newt: Yellow
