: Avoiding Colour Optical Illusions in Tables I have a table that I am using colors to highlight certain cells containing the repeated values. Cells with values that do not repeat are uncoloured.
I have a table that I am using colors to highlight certain cells containing the repeated values.
Cells with values that do not repeat are uncoloured.
Because of illusionary effects, the cells that are not coloured look "off white" or even a pale cream, or light blue.
You can spot that they are actually white if you use a sheet of paper to cover the coloured cells around them.
Below is the same table again, I have marked the cells that are infact white with a red X
How can I stop this colour illusion?
I suspect that actively colouring the white backgrounded cells a grey could work.
This is primarily for viewing on Monitors, but it may also be printed.
More posts by @Murphy569
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Neighbouring fields always influence the perception of colors. Not only the white cells but also the colored cells look differently when isolated. This is unavoidable because of the way the cones in the retina work. The only way to weaken this effect is to give the white cells a distinct color or grey as you suggested.
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