I am trying to render a house I modeled. The problem I am having is that, regardless of the time I set when rendering, the sunlight is too harsh at it completely changes the colors I have selected for walls. I cannot represent the true colors I select in rendering.

I am using a Beige color as the main wall color and a darker shade of Gray as the accent color. If it's a midday rendering (example 11am or 12 pm) the colors get totally washed out. The gray is not at all the darker color I selected (Even in the shadows) and the Beige looks almost white. If its a early or late time (7am or 5pm) everything turns yellow.

What can I do here? Any way i can simulate an overcast lighting condition in SH3D?