If it's a brownish tint or a dark dull yellow, you are dehydrated and need to consume water immediately. Clear to very light bright yellow is ok, and you are doing just fine.
In general, men should consume about 3 liters of fluid and women about 2.2 liters of fluid each day. These are minimum standards, so adjust accordingly depending on your level of physical activity and exposure to heat and sun and humidity.
I'm counting on all of you to be diligent this summer with your hydration...don't "piss" me off!
Lifestyle Fitness Coach