What Colors Make Orange?
Color theory is about mixing the exact right color to get the affect you desire
Look at the color wheel. What color is opposite orange on the wheel?
Blue and Orange are on opposite sides of the wheel
Blue neutralizes the orange, and the more you add, the closer to grey (neutral) the orange will become.
To get lighter shades or orange, and to get closer to a peach color, you will need to add white. It lightens the color
For Different shades:
A perfect orange will have equal parts red and yellow
For a brighter, yellower orange, add more yellow
For a deeper, redder orange, add more red
For more on color Theory