Saturday, October 6, 2012

"Not Bule, it is Cyan" --- Sold

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Here is the other painting I did two days ago. Since I am in blue (as matter of fact, I am a little blue in mood lately), I want to talk more about this color called "cyan".

Many years ago when I was just into oil painting, I learned a little bit about color. I was told the red, yellow, and blue are primary colors; orange, green, and purple and secondary colors; red/green, orange/blue, and yellow/purple are complementary. You get grey if mixing the complementaries together. Now I find out this color model is so WRONG.  I can guarantee you will not get grey if you mix those "complementaries". In Munsell color wheel, there is no color orange. Now I use the computer HSV color system (similar to Munsell), The six base colors are red, yellow, green, cyan (or turquoise), blue, and magenta (or purple). You see orange is dropped, and cyan has been added in. These six colors are evenly distributed on the color wheel. In other words, each of the pizza slide of these six colors are equal in size (60 degrees in angle). If we use the old color system, the orange slide will be very narrow, only 30 degrees, while the blue slide will be very wide (120 degrees) if we think cyan belongs to blue. With the HSV system the complementary pairs are red/cyan, yellow/blue, and green/purple. Now you can make greys, not mud.


George Carr said...

Thank you for sharing your fascinating explorations into color. I wonder if you use an actual, physical HSV color wheel or if instead you have a mental model of it. said...

Great work, Qiang Huang, well done. You're good, you.