How do people see the dress as Black/Blue when the RGB values shows that the color of the dress in the Image is a light purple and a brown ish color?

Question

How do people see the dress as Black/Blue when the RGB values shows that the color of the dress in the Image is a light purple and a brown ish color?

In: Other

Answer 1

[1 of my sources](https://saseye.com/2015/02/27/are-we-all-colorblind/amp/)