Obviously if you looked at one it would appear white as it's so bright and stars are black bodies so emit all over the spectrum (correct me if I'm wrong). But as the sun is a yellow star, it looks yellow around it (unless that's the atmosphere of Earth getting rid of blue?) and has a yellow tinge. If you were placed in space at a distance in the range of a few AU, would it literally appear blue? If the sun were blue, and Earth's orbit were adjusted so that the new (blue) sun would appear as big as the current (yellow) sun does now, would everything have a blueish tinge?