However, on some occasions that are heavily associated with Advent, such as the Rorate Mass (but not on Sundays), white is used.

The Rorate Mass is a Votive Mass in honor of the Blessed Mother for the season of Advent.

It is a tradition to celebrate such Rorate Masses in the early morning (before sunrise) on Advent weekdays, accompanied by candle light in an otherwise dark church.

"Rorate Mass" is, originally, the name for a votive Mass of the Blessed Virgin in Advent, named by its introit (the same Rorate coeli as above).

In the ordinary form of the Roman Rite, it is often replaced by a Mass with the liturgical texts of the corresponding Advent weekday (consequently with violet vestments), or possibly the day's saint, but with the rest of the Rorate Mass traditions.

However, on some occasions that are heavily associated with Advent, such as the Rorate Mass (but not on Sundays), white is used.

The Rorate Mass is a Votive Mass in honor of the Blessed Mother for the season of Advent.

It is a tradition to celebrate such Rorate Masses in the early morning (before sunrise) on Advent weekdays, accompanied by candle light in an otherwise dark church.

"Rorate Mass" is, originally, the name for a votive Mass of the Blessed Virgin in Advent, named by its introit (the same Rorate coeli as above).

In the ordinary form of the Roman Rite, it is often replaced by a Mass with the liturgical texts of the corresponding Advent weekday (consequently with violet vestments), or possibly the day's saint, but with the rest of the Rorate Mass traditions.