Blue is the coolest color and yellow is the warmest. In general, as blue is added to a color, it becomes cooler, and as yellow is added, it becomes warmer.
Your best colors depend on whether your coloring is cool or warm. This exercise is partially preference-based on the theory that people are instinctively drawn to colors that complement their own natural coloring. If you have changed the coloring of your hair, only answer Questions 1, 2, and 3.