Latrodectus geometricus are the most highly variable widow in the world when it comes to colors, and disputably size too! A spider that can take on many different looks. The following pictures are just a small sampling of how variable their colors can be. Notice in the pictures these things that change:
-Background color
-Spot color (if even present!)
-Shading around the spots
-Leg color
-Banding/annuli on the legs
-General pattern
-Color of the hourglass
-Color of the carapace
White:
Completely black:
Silver:
Tan: