The salesman in the showroom told us that the tiles we see hanging on the wall will be 20% lighter when are layed down horizontaly on the floor, so we should take into account when choosing our prefered color.

Is this true or it's only a sales people myth? (I tried to google to find anybody mention this interesting fact but couldn't really find any source for that) enter image description here

  • How does the sunlight come into the room? Think about the lights in the room - how does the light hit the wall and floor? angle? – Solar Mike Mar 9 '20 at 5:31
  • take a few of the sample tiles home with you and see for yourself – jsotola Mar 9 '20 at 6:44
  • it probably has to do with human evolution ... you expect the ground to be dark and the sky to be light – jsotola Mar 9 '20 at 6:47
  • Hello, and welcome to Home Improvement. Unfortunately, any answer to this question will be a matter of opinion. – Daniel Griscom Mar 9 '20 at 14:28

It's neither strictly true nor a myth. It's an oversimplified (and arbitrarily quantified) suggestion that has some merit. Check color in your room with the lighting it'll actually have. It's more likely that color will vary due to light source color and reflected color from other elements of the room's design than installation orientation, though.

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