C# is a major, spelled C#, E# and G#. In DADGAD tuning (D2 A2 D3 G3 A3 D4) the easiest shape is x4314x, which sits at fret 1, spans 3 frets and mutes 2 strings. 12 positions for it are shown below, from the nut up to fret 11.
Notes and intervals
Note
C#
E#
G#
Interval
1P
3M
5P
12 ways to play it
Ordered by how hard they are to fret, easiest first, one per position on the neck. Fret numbers are relative to the position marked beside each grid.
x4314xsits at fret 1, spans 3 frets and mutes 2 stringsxx11101111sits at fret 10, spans 1 fret and mutes 2 stringsxxx686sits at fret 6, needs a barre across 3 strings at fret 6 and mutes 3 stringsx43643sits at fret 3, needs a barre across 4 strings at fret 3 and mutes 1 stringx4668xsits at fret 4, spans 4 frets and mutes 2 strings11811108xsits at fret 8, needs a barre across 4 strings at fret 8 and mutes 1 string111111131115sits at fret 11 and needs a barre across 5 strings at fret 11x431xxsits at fret 1, spans 3 frets and mutes 3 strings11111110xxsits at fret 10, spans 1 fret and mutes 2 strings686686sits at fret 6 and needs a barre across 6 strings at fret 6xx111011xsits at fret 10, spans 1 fret and mutes 3 stringsx86686sits at fret 6, needs a barre across 4 strings at fret 6 and mutes 1 string
Keys C# belongs to
C# is diatonic to 24 of the 96 keys this app knows, playing a different role in each.