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

The chords in the key of E♭ Major

E Flat Major Chord E♭
F minor Chord Fm
G minor Chord Gm
A Flat Major Chord A♭
B Flat Major Chord B♭
C Minor Chord Cm
D Diminished Chord Ddim

E♭ Major - F minor - G minor - A♭ Major - B♭ Major - C minor - D diminished (D°).

      Eb    Fm    Gm    Ab    Bb    Cm    Ddim  
      I     ii    iii   IV    V     vi    vii   

The chord formula for any Major key is
Major - minor - minor - Major - Major - minor - diminished

A common way to number these chords is by Roman numerals
I - ii - iii - IV - V - vi - vii

(Major chords are usually capitalized, minor and diminished chords are lower case)