What colors combine to form purple? Violet is the complimentary color of yellow, hence it is created by combining blue and red. Because purple is a violet with a significant blue component, the mixing ratio cannot be 1:1. So adding a bit more blue than red results in purple.
Purple is one of the simpler colors to create. There are two ways to make purple: by mixing two primary colors or by mixing two secondary colors. To make purple using two primary colors, you need equal amounts of each color. For example, half as much red would go into the mixture as blue. This would make the mixture darker, so you would need more red to get back to its original intensity. Purple can also be made by mixing two secondary colors: green and orange. Small amounts of these colors will not change very much, but larger amounts will result in grayish brown and reddish brown, respectively.
The fact that purple is made up of different colors tells us something about how we see color. We think of color as single entities, but it is actually a combination of different wavelengths of light. The brain separates these colors apart because it needs to know where one end of the spectrum ends and another begins. You could say that we perceive purple as being one solid color because we understand enough about how colors work to separate them out into their constituent parts.
There are many shades of purple, from lavender to magenta.
Purple is created by combining red and blue, but attaining the proper shade of purple is more difficult. To answer the question, "What colors produce purple?" one must first grasp color theory. Because color is created by light, we must first understand how light works. Light consists of waves called photons that have a frequency proportional to its energy level. The higher the frequency, the shorter the wavelength. Wavelengths are measured in nanometers (one billionth of a meter). Red light has wavelengths between 700 and 800 nm while violet light has wavelengths around 400 nm.
Purple is made up of red and blue colors, which are both produced by light being refracted through the prism. When light travels through water, it spreads out due to its molecular structure. This means that all the colors of the spectrum are present at once when looking at the sun. However, because glass is transparent to some degrees, all the colors can be seen through it too. If you put a piece of paper with red ink on one side and blue ink on the other next to a sheet of glass, then you would see yellow light go through the glass because it hits the red ink first. Then the wave of light continues onto the blue ink, where it is reflected back towards the glass container. From there, it goes back into the red ink again and continues onto the next piece of paper where it is absorbed. In this way, one color disappears into another until only red remains.
With a color palette like the one described above, red and blue do not combine to get purple. To make a clean purple, you'll need a tube of red with a strong color bias toward blue and no yellow. Cadmium reds, for example, have a yellow color bias. They are called "cadmium" because they were first made from the mineral cadmia. Other names for these colors include French red, Venetian red, and Indian red.
Cadmium is a heavy metal and as such is toxic if not used properly. It was once used in industrial paints but has been banned since 1978. Today it is only used in ultra-low concentrations in laboratory experiments and science demonstrations.
When exposed to air, cadmium forms a thin layer of oxide that protects it from further oxidation. This protective coating falls off when the cadmium object is heated so it's important to keep it out of reach of heat or sunlight. Otherwise, your purple will fade over time.
There are several ways to make your purple more permanent. The first thing you should do is never put it in the mouth! That goes without saying but still needs to be said. If you really want to preserve the life of your color scheme don't chew gum or eat candy containing sugar. These foods cause the pigments to break down faster so your colors will appear dull sooner.