Everytime I select a color in Illustrator it has the "Out of gamut" warning and the color I want appears darker and different then how It looks in the preview of color picker. Does anyone know how I can fix this? It is making the colors of my design really ugly. This problem also seems to be happening when I select a color in Indesign, but I'm not sure if this is caused by the same thing.
Thanks in advance!
The color picker works in RGB and most probably your document is set up in CMYK. When working for print this is perfectly OK and the printed results will match the duller look more than the vivid color picker. If you're designing for screen set up your dcoument as RGB.
Read the manual on colors as well.