There are three sets of complementary colors in photography: green and magenta, blue and yellow, and red with cyan. These color combinations always go together well. They are pleasing and, at the same time, visually striking. This painterly version (I used Topaz Simplify) of two costumed models in Venice exemplifies what I'm referring to. Similarly, the photo of a yellow police station in Istanbul, Turkey set against a rich blue sky shows another set of complementary colors. If you are sometimes unsure of what colors look good together, you can never go wrong with the complements.
