Pairing the right color combinations can be intimidating.
I've always been told throughout my life that I had a good "eye" for color.
Complimentary colors are usually colors that are opposite of each other on the color wheel. These combinations can contrast or impact each other. One can appear brighter than the other, almost vibrating or "popping" out when paired.
Using monochromatic colorways is more common. The combinations are harmonious and balanced. They are usually several shades, tones or hues of the same color. These combinations will let your eyes rest while viewing.
I love using colors that contrast or balance each other in my work.