Especially for Halloween, I’m sharing a great little art trick, that turns out to be a pretty neat treat as well.

First of all, a basic understanding of colors is helpful. Generally, all colors can be divided into two broad categories known as “warm” or “cool”. Warm colors — red, yellow, orange — are those that you associate with warmth, or with warm things such as fire, the sun, or hot lava. Cool colors — blue, blue-green, aqua — are those that you associate with a feeling of cool and with cool things such as the ocean, sky, ice and snow. (A few colors can work in either category depending on their composition. Green and purple are good examples of this duality because each is made by mixing a warm color with a cool color.)

Children are fascinated not only by colors and color mixing, but also with the idea that colors can make us feel a certain way based on their perceived warmth or coolness. Advertisers and designers are particularly adept at using our innate feelings about color to their advantage. As it turns out, warm and cool colors can also be used to manipulate our visual perception as well.

Which brings me to the art trick I promised! When creating any type of artwork, if you’d like to enhance the illusion of depth in your piece, remember this simple trick: warm colors advance and cool colors recede. Even the lightest application of cool colors over an area of your work, be it a painting, a drawing, or whatever, will make it look like it has been pushed back and is farther away from you. The opposite is true for warm color application, making that area magically seem as if it is closer to you, advancing toward you. And if you apply both in the same piece — warm colors on foreground images, and cool colors on background images — Wow! The illusion is striking!

Try this little trick for yourself and teach it to your students. The results are a treat and will be sure to delight both artist and viewer!

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