Guitar Chords in the Key of D Flat (D♭) Major

The chord formula for any Major key is Major, minor, minor, Major, Major, minor, diminished.

The chords in the key of D flat (D♭) Major are D♭ Major, E♭ minor, F minor, G♭ Major, A♭ Major, B♭ minor, and C diminished.

A common way to number these chords is by Roman numerals: I, ii, iii, IV, V, vi, vii. Numerals that represent a major chord are usually capitalized, and minor and diminished chords are lower case.