To reduce cabin heating from the sun, the white is the best.
Will a cabin temperature of 155º instead of 135º affect the battery very much? The "Battery-Temp" display should give us some good data, but performance and lifetime impact will be much more difficult to measure.
The amount of solar heating while driving (mostly through the windows, but some through the "body/roof") will affect the A/C usage, and thus lower the range, or increase the need for "deeper" discharge/charge cycles.
All-day parking in the shade instead of the sun would probably be helpful to lower battery temperatures to near the "ambient" temperature.
Most of the heat, cold, hill, traffic, speed, wind, rain, etc. effects are "small" (a few percent each, perhaps up to 5%, 10%, or more in some cases), but a number of small effects can still add up to a substantial, noticable impact on the EV's "base" performance.