What color was the Sistine Chapel ceiling painted before Michelangelo decorated it?

Before Michelangelo decorated it, the Sistine Chapel ceiling was painted blue with gold stars. This simpler design represented the night sky and formed the chapel’s original ceiling decoration.

Pope Julius II’s decision to commission Michelangelo transformed the vault into a much more ambitious program. Instead of preserving the starry-sky scheme, the project covered the ceiling with scenes from Genesis and a complex painted architectural framework.

The earlier decoration explains why accounts of the ceiling can sound contradictory. The chapel had an artistic program before Michelangelo, but the surviving fame of the vault comes from the later Renaissance frescoes.

Michelangelo’s ceiling is therefore not simply a restoration of the original star field. It is a replacement and expansion that introduced monumental figures, narrative panels, and prophetic imagery on an unprecedented scale.