C# Major — diatonic chords

The most common scale in Western music. Bright, happy sound.

7 chords · one per scale degree

Diatonic triads

Chord details

Degree	Numeral	Chord	Quality
1	I	C#	Major
2	ii	D#m	Minor
3	iii	Fm	Minor
4	IV	F#	Major
5	V	G#	Major
6	vi	A#m	Minor
7	vii°	C°	Diminished

Major in other keys

C C#D D#E F F#G G#A A#B

Scale diagram

View C# Major fretboard diagram →

Other scales in C#

C# Natural Minor C# Harmonic Minor C# Melodic Minor C# Dorian C# Phrygian C# Lydian

About the C# Major scale's harmony

The C# Major scale produces the following diatonic triads: C#, D#m, Fm, F#, G#, A#m, C°. These chords all use only the notes of the C# Major scale. The Roman numerals (I–ii–iii–IV–V–vi–vii°) show the function of each chord within the key.