If you have a beacon beam far away it looks white when you look right at it but if it is on the side of the screen it looks the correct color

Steps to reproduce

1. Place a beacon with a colored glass on top
2. Set your render distance to like 20
3. Go far away (like 1 chunk short of your render distance so it is still in view)
4. Notice the beam looks white
5. Look away from the beacon so it is barely in your field of view. Notice it now looks the correct color.