Los Angeles is having another dry year with very little rain. Having no cloud cover in the sky creates a very strong contrast between lights and shadows. While sunglasses are essential on days like these (Angelenos wear them for eye protection, not just to look "cool"), sunglasses can interfere with seeing accurate colors when sketching. I wear sunglasses with gray lenses that doesn't distort the colors too much when I'm drawing with line work, and sit in the shade without my sunglasses to paint, like I did here at patio area of Santa Monica Public Library. When I know I'll be sketching outdoors without a shaded rest area, I also wear a wide-brimmed hat and bring a stool so I can choose a shady spot to sit.
Summer is coming soon. I'll be using the sunglasses and sitting-in-the-shade trick a lot.