Lect12ArtTheoryUsability - Announcements Reference Art...

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1 Announcements Reference Art Theory for Web Design by Jennifer Golbeck ISBN: 1-57676-142-8 (Available in Amazon)
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2 COLORS IN WEB PAGES It should support the process of conveying information Based on the RGB system We have 16,777,216 colors (Quite a lot!) How many colors to use? The answer varies but you risk more by using a lot of colors than by using few Lot of colors makes information harder to see and page harder to view Few colors page could be boring
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3 Color Theory Primary colors red, yellow, and blue (notice different from RGB) Secondary colors green – blue and yellow orange – yellow and red violet – red and blue Hue pure color (e.g., red, blue) with no white or black added Shade pure color with black added, extending from pure hue to black Tint pure color with white added, extending from pure hue to white Tone pure color with grey added, extending from pure hue to gray A pure color is at full saturation As saturation diminishes colors fade to gray
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4 12-Hue Color Wheel
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5 Classification of Colors Complementary colors found directly across from one another Have the greatest contrast Example: orange and blue Analogous colors Provide little contrast Three to five colors found consecutively on the wheel Usually found in nature Warm colors Reds, oranges, yellows Remind you of warm things Cool colors Greens, blues, violets Remind you of cool things Harmonic color found equally spaced on the wheel (e.g., complementary colors) Harmonic dyads (complementary colors) Harmonic triad collection of three colors Example: red, blue, yellow
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6 Approaches to Assigning Colors Approach I Main/Support/Emphasis colors Rule of thumb is two use three colors Main color - occupies most of the web page area and defines the tone of the web page Support color Color closed to the main color and that supports it Can often be an analogous color Emphasis color Used to emphasize certain elements of the web page
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This note was uploaded on 11/04/2010 for the course CMSC cmsc122 taught by Professor Perez during the Fall '10 term at University of Maryland Baltimore.

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Lect12ArtTheoryUsability - Announcements Reference Art...

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