How many ounces is in 1 part color and 2 part developer?

To determine the total ounces in a mixture of 1 part color and 2 parts developer, you first need to define the measurement for one part. For example, if 1 part is 1 ounce, then 2 parts would be 2 ounces. Thus, the total would be 1 ounce (color) + 2 ounces (developer) = 3 ounces. If you use a different measurement for one part, simply adjust accordingly.