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Using Colors

Outcomes:

• Describe how many people are color blind
• Describe the most common form of color-blindness
• Describe major color scales and the major reason to use each one
• Differentiate between additive v. subtractive colors

Color Blindness

See accessible data visualizations

Color Scales

• Diverging
• Categorical
• Sequential

Source: Socviz.co

References:

• Color Blindness
• Color: From Hexcodes to Eyeballs
• Saccades and other weird things your eyes do

Just for fun

We do not all interpret color the same. The link below compares your perception of blue versus green. Is my blue your blue?

Our eye links movement. Even though the pixels do not move very far, we interpret the overall pattern as them falling down the page.

Crowding together lines of text makes it less readable. Your also is able to fill in details for fuzzy elements when we are far away from the image.

The picture below looks yellow, but looking more closely at it reveals that it has alternating green and red lines. Your eye combines the two colors into yellow.