Complimentary Colors are opposites on color wheel.

Mix pairs of complimentary colors together to form neutral or grey colors.

Mix together secondary colors ( orange, violet and green) to create more interesting neutral colors.

Color Saturation - how neutral or saturated with pigment is the color you are mixing?

Try to capture the essence of what you are looking at by:

keeping a fresh eye on the whole, the “big picture”.

Find your lightest light, and darkest dark.