
The below diagrams show you how to play the C# / Db major 6 chord in various positions on the fretboard with suggested finger positions.
Interval positions with respect to the C# major scale, notes in the chord and name variations:
Note: Major six chords share the same notes as their relative minor seven counterpart. I.e.. The relative minor of C# is A# so C#M6 shares the same notes as A#min7.