Lots of fabrics change colour when exposed to light. It's called "fading".
colorfastness is property of color, not to change its tone and strength, when exposed to light (artificial or natural-sun) and/or washings, dyed on the knitted fabric.
AgCl is silver chlorideThe color of silver chloride (AgCl) is white.
It gets darker when it is exposed to light.
light brown color
It's a light gray fabric.
The color that would be the warmest if exposed to white light would be yellow. This is because yellow is paler and less intense that the other warm colors of red or orange..
pH paper changes color after being exposed to an acidic or a basic solution (depending on the paper). For instance, blue litmus paper will turn red after being exposed to an acidic solution, while red litmus paper will turn blue after being exposed to a basic solution. The addition of an acidic or basic solution to litmus paper causes a chemical reaction which changes the light absorbing properties of litmus, thus altering its color.
nob
Alexandrite
grean
Filters don't change the color of light. They selectively absorb or transmit light based on its color. Anything that comes out of a filter must have been there before the light entered the filter.
The color of the sky, temPerature, light