Color
The amount and variety of colors on the screen make a big
General
difference in how people view the lesson.
Generally, you should use four or fewer colors per screen. Of
Amount
course, more colors can be used to provide realism in graphics.
When possible, screen depth should be set for thousands of
Screen Depth
colors in both the operating system settings and the authoring
software settings. This will eliminate erratic color changes and
shifts during your project. If choosing thousands is not
possible, ensure that a standardized color palette is used
throughout your project.
Choose colors wisely. Certain colors carry special meanings
Color Messages
in our society. For example,
Green = go, passive, peaceful
Yellow = caution, slow down, or lock out
Red = stop, warning, danger
Color can also be used in an unnatural way to give a special
effect. For example,
Blue spaghetti
Yellow coffee
Purple ketchup
Certain color combinations do not work well on a computer
Color
screen. For example,
Combinations
and Contrast
red-green
orange-blue
fuchsia and any color
Use contrasting combinations. For example, white text on a
medium to dark blue background is easy to read. Black text on
a gray background is also a good combination. Blue text on a
blue background
is much harder to read.
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