They are very faded compared to a normal screen. With no backlight and in direct natural light, the Kaleido screens look similar to a color newspaper or many co

They are very faded compared to a normal screen. With no backlight and in direct natural light, the Kaleido screens look similar to a color newspaper or many comics. (Some comics use paper and printing that produces much more vibrant color though) In artificial light a lot depends on the specifics of the environment. Trying one out in warmer light, somewhat indirectly (light overhead, screen partly vertical for reading) it was a little dark, and needed the backlight. It was a cool backlight, so the warm overhead light combined with it to counteract a bit of the shift toward blue. In the dark w/o external light, the cool backlight very much shifted color towards blue.