# Colors – part 2 K1066BI – Graphical Design Teppo Räisänen

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Colors – part 2 K1066BI – Graphical Design Teppo Räisänen Teppo.raisanen@oamk.fi

Colors The wavelenght of the radiation determines the color of light The amplitude determines the intensity of the light ▫The wavelenghts that are scattered from object determines object’s color

Colors Colors can be divided into primary colors ▫Primary colors are sets of colors that can be combined to make a useful range of colors And secondary colors ▫Colors that can be made by combining two primary colors

Colors Normally we have three primary colors ▫Since our color vision is trichromatic

Colors Traditionally, red, blue and yellow are used as primary colors ▫Used by painters

Colors Other options are Red, Green, Blue ▫Especially with computer era Cyan, Magenta, Yellow ▫Used in printing press

Colors Combination of two primary colors creates a secondary color ▫With red, blue and yellow as primary colors:  Red + Blue = Violot  Red + Yellow = Orange  Blue + Yellow = Green

Colors Combination of primary color and a secundary color creates tertiary color ▫Blue + Violot = Blue-violet ▫Red + Orange = Red-orange ▫Yellow + Green = Yellow-green

Colors Colors can be assigned into a wheel

Colors Colors can be assigned into a wheel P = primary colors P PP

Colors Colors can be assigned into a wheel P = primary colors S = secondary colors P PP S S S

Colors Colors can be assigned into a wheel P = primary colors S = secondary colors T = tertiary colos P PP S S S T T T T T T

Colors From the color wheel we can observe few things P PP S S S T T T T T T

Colors Warm colors ▫Yellow, red, orange Cool colors ▫Blue, green, violet P PP S S S T T T T T T Warm colors Cool colors

Colors Each color also has an opposite color ▫Red Green P PP S S S T T T T T T

Colors Each color also has an opposite color ▫Red Green ▫Blue Orange ▫Yellow Violet P PP S S S T T T T T T

Colors Opposite colors are said to be complimentary P PP S S S T T T T T T

Colors Complimentary colors are key aspect in graphical design ▫Complimentary colors have great contrast  Color contrast ▫Images/design done with complimentary colors are often aestetically pleasing ▫When placed next to each other compliment colors make each other appear brighter

Colors

Remember that brain interprets what they see ▫Which gray area in the middle of the bigger box below is darker?

Colors Remember that brain interprets what they see ▫What is the color of the inner box?

Colors Remember that brain interprets what they see ▫What is the color of the inner box?

Colors Remember that brain interprets what they see ▫The red in this picture is the same red as in previous slides

Colors

Really cool illusion ▫A is darker than B, right?

Colors We usually relate colors to different feelings ▫Red  Joy, love, rage, anger ▫Orange  Desire, thirst for action ▫Yellow  Intellect, freshness

Colors We usually relate colors to different feelings ▫Red  Joy, love, rage, anger ▫Orange  Desire, thirst for action ▫Yellow  Intellect, freshness

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