1 / 5
A color scale that transitions from one end of a spectrum to another — for example, light to dark blue — is called a _____ color scale.
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A sequential color scale transitions through a single hue or luminance range, ideal for ordered data from low to high.
2 / 5
When data has a meaningful midpoint (such as zero) and values on both sides need distinct color paths, you use a _____ color scale.
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A diverging color scale uses two contrasting hues that meet at a neutral midpoint, highlighting deviation in both directions.
3 / 5
Which term describes a color palette designed so that people with color vision deficiencies can still distinguish all categories?
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A colorblind-safe palette is carefully chosen to remain distinguishable for viewers with color vision deficiencies such as deuteranopia.
4 / 5
In visualization design, 'hue encodes the category' means that _____ is used to represent different data groups.
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Hue — the perceptual quality that makes red different from blue — is used to pre-attentively distinguish between unordered categories.
5 / 5
The viridis color scale is valued in data visualization primarily because it is _____.
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Viridis is a perceptually uniform sequential palette that remains interpretable for colorblind viewers and prints well in grayscale.