Depending on what you wear doesn't really mean your eyes change colors. If you have greenish blue eyes wearing a color that complements green can make your eyes appear more green, wearing a color that complements blue will make them look more blue. It doesn't actually change the color.
It's totally normal, my eyes tend to change color depending on what I wear. This is common in a lot of people who have light eyes like green or blue, they tend to change depending on the colors you are wearing.