Unexpected, sure. But considering the shades co-exist in nature so frequently, why wouldn't they work in our interiors?

This scheme allows for up to 256 levels of each color component. For example, red is specified as '00FFFF00', green as 'FF00FF00', process black (uses cyan, magenta, and yellow ink) as 'FFFFFF00', and ...

Some colors to avoid include orange, red & green, and blue and green (Lambert, 2018; Penn State, n.d.). Text color that is too similar to the background color will be hard to read (Kalbag, 2017, p. 75 ...