The lights of red and blue reflect off of the object into your retina and the rods and cones depict what colors your see.
A white shirt is, basically, reflecting all colours of the electromagnetic spectrum which it is exposed to. So for white light it is reflecting red, orange, yellow, green, blue, indigo, violet. If you only expose it to red light (with a wavelength of ~650nm), it will reflect only that light. Therefore, the white shirt will appear red.
It looks purple in colour. So let's see: You are wearing a blue shirt and a dress of some other colour, have I got this right? If the shirt is truly pure blue and it is hit by pure red light it will appear black. I can't answer for the dress, because its colour is not stated.
Rather the opposite. The shirt absorbs other colours, and reflects the blue light, which is what you see.
because the light reflect of the blue shirt and can make ur eyes even look blue
Well, why do you call it a red shirt ? Could it be because it absorbs all colors of light except red, so that when white light shines on it, all colors except red soak into the shirt, and red is the only light left to travel from the shirt to your eye ? If that is so, then what happens if no red light shines on the shirt ? Is there any light left to travel to your eye ? No ? Well then, what color do you see if no light travels from the shirt to your eye ? I hope Socrates would be proud.
Light that hits the shirt absorbs most of the color and reflects another color. For example, light hits a your shirt. It absorbs all of your colors except one (red, orange, yellow, blue, indigo, purple) and reflects green. So what everybody (who can see color) will see is green.
NO
In Star Trek: TOS the shirt colour death count is as follows:* Yellow-shirt crewperson deaths: 6* Blue-Shirt crewperson deaths: 5* Engineering smock crewperson deaths: 4 * Red-Shirt crewperson deaths: 43
they can see red, blue and green.
When light hits a surface, some 'colors' are absorbed while others are reflected. The reflected colors are the ones you see. A red shirt absorbs all light except red which the red shirt reflects. A shirt that looks white reflects all light and absorbs none. A shirt that looks black absorbs all light and reflects none. this is why a white shirt will keep you cooler on a hot day.
white
Depends. Dark blue and black can set people off of what they see of it, sometimes they think the blue is black. If its a black tie, a light blue shirt can go better if you really want blue.