Color theory in the garden. Too abstract for nature; or too precise? All I can say is that having a foundation that one can refer to is a savoir in times when everything seems to be going in every direction.
When planting annuals, bulbs or even swaths of perennials in a garden bed, pay attention to the mix of colors and how they work together.
Add Color with Annuals
Add Color with Perrenials
Add Color with Bulbs