I’m trying to use all white mode but sometimes it’s reddish
White mode does not negate the skybox. As a result, sunrise and sunset will influence the color of interiors with a more reddish hue. In order to negate the effect of the skybox, you can use a white HDR background. This brief tutorial provides a step-by-step.
https://www.linkedin.com/pulse/improved-neutral-lighting-enscape-phil-read