Colors of distant blocks go crazy at random times after breaking blocks. Changing video settings doesn't make it go away. Only thing that fixes it is restarting minecraft.
Environment
Minecraft - Vanilla (clean install, no mods)
Windows 7 Pro 64 bit
Java 1.8.0_31 64bit
Thank you for your report.
However, your ticket has been resolved as a duplicate.
This issue has been linked to the original bugreport: MC-5178. You can find or add further information on that report.
Please search before reporting any bugs, as it's likely that one exists already.