Capital letters 'BAY' abstraction is combined with decoration tools: cement spoons, roll brushes, and paint brushes. Reinforced with paint splashes. Paint splash is to emphasize that this is not the sale of tools, but the work, painting / decorating.
rainbow illustrates variety. The sloping rainbow looks dynamic.
Gray is seriousness, stability, independence and responsibility.
Fonts are taken from free fonts of metropolis, with character: modern, simple, timeless, good readability.