That's a great question, and I totally feel your pain! My previous set of bins looked brand new for about a year, and then they slowly turned from a nice dark green to a weird, patchy pale shade. It's a super common problem with standard plastic bins.
To answer your question directly: yes, many modern outdoor trash cans *do* come with UV-protected colors, but you have to look for them specifically. Not all bins are created equal. The standard, budget-friendly models often use basic pigments that break down under constant sunlight, leading to that faded, chalky look.
The good news is that more manufacturers are now offering bins made with UV-inhibited plastics or special fade-resistant colorants. These are designed to withstand prolonged sun exposure much better. When shopping, look for keywords on the product description like "UV-resistant," "fade-proof," "weather-resistant," or "all-weather construction." These typically last several seasons before showing significant fading.
A quick tip from my own experience: placing your bins in a slightly shaded spot if possible, or even using a simple bin cover, can dramatically extend the life and color of any trash can, even the UV-protected ones. It's all about reducing that direct, harsh sunlight exposure day after day.
Hope that helps you find a bin that stays looking fresh longer