Coolant color

I bought few months back a BMW e90 lci with automatic transmission.

Wanted to do whole fluid change thing in my car (steering, brake etc.) And then coolant.
There is marked on coolant container that it was changed three years ago. Fine, but I am not sure about the color.

Engine oil is at max level since I changed it 2,000 miles ago, did not change a bit since then.

Coolant cap is clean, fluid does not seem oily, but it is white.
Did not have any warnings/overheat problems even on highway speeds.

Probably going to change this fluid ASAP, but wondering if I could check for anything else before.

Adding pictures of coolant fluid.