In short, yes. Urban planter boxes are available in a much wider range of colors than the familiar black and brown. Black and brown remain common because they are neutral, hide dirt, suit many streetscapes, and are often cheaper as standard finishes. But they are far from the only option.
For commercial and municipal projects, powder-coated steel or aluminum planters are among the most flexible choices. Powder coating can match almost any RAL or custom color, from soft sage and warm terracotta to bright yellow, deep blue, or matte white. These finishes are durable, impact-resistant, and available in gloss, satin, or textured effects. Painted wood planters can also be custom-colored, though they may need more frequent touch-ups. Concrete planters can be left natural, integrally colored, stained, or sealed in tones such as sand, charcoal, or rust. Fiberglass and recycled plastic planters offer molded-in colors and are popular for lightweight rooftop and courtyard installations. Corten steel adds a deliberate weathered orange-brown, while galvanized steel gives a cool metallic gray.
Color choice is not only aesthetic. In urban settings, lighter colors can reduce heat buildup in sunny locations, while darker colors may show less staining. Bright colors can highlight entrances or wayfinding, but they can also fade or date quickly if not specified with UV-stable coatings. Contrast is useful for accessibility: planter edges should remain visible against paving. Maintenance also matters: powder-coated metal is easy to clean, painted wood needs repainting, and concrete may show water marks.
Many manufacturers offer standard color palettes, and custom colors are often possible for larger orders, sometimes with minimum quantities or longer lead times. So urban planter boxes can be green, blue, red, white, gray, terracotta, yellow, or nearly any custom shade, as long as the material, coating, budget, and maintenance plan suit the site.