The Color Wheel
A circle of colors, based on the primary colors of red, yellow and blue, has been used in art for hundreds of years. In fact, it was Sir Isaac Newton in 1666 who first developed a circular diagram of colors showing their relationships to one another. Artists and even scientists have created many variations of the color wheel concept, and the debates continue to this day as to which format of the color wheel is most valid, though any color wheel offering a sequence of pure hues that are logically arranged is worthwhile.
Here is how a traditional color circle is organized:
1. Primary Colors: Red, yellow and blue – All of the other colors are created from these 3 hues.
2. Secondary Colors: Orange, green and purple – These colors are the ones created by mixing two primary colors together.
3. Tertiary Colors: Yellow-orange, red-orange, red-purple, blue-purple, blue-green and yellow-green – These are the colors created by mixing one primary color with one secondary color, which is why they have two-word names.