Yellow, white, blue, green, terra-cotta, beige, and taupe are perfect exterior colors to choose with a brown roof. You could even try a taupe-and-chocolate-brown exterior color scheme to create an amazing exterior for your house. Applying lighter shades on your siding or the outside walls is the key to making brown-roofed homes more appealing. In case, you are applying a brown color to the brown roof, then applying a grey color to the exterior walls like siding would look stunningly good to the roof.
When using the darker shade of brown in your homes roof, you can go for the cooler rock colors like the white, grey, blue, green, and purple which will look good on a darker shade brown roof. Using white, brown, orange, yellow, and brick colors like red and orange are considered to be the best appropriate colors which goes well with light brown roof. If you have a brown roof, choosing any of these palettes of stone or similar brick colors would lead to a refreshed, cohesive look to your house.
For going gray with the weathered side, brown roofs with a few naturally-colored stones is a really harmonious color scheme. The siding is partially done with light brown, and partially done in gray/brown, which matches up to the trim in this house, and helps to provide the bridge with the grey garage doors and the roof. This house has a subtler color palette which perfectly combines the siding, trim, doors, and roof.
The muted colors are closer to those on the roof, which allows both areas to flow into each other, while also helping the red pop out more. This house features that same pale cream color in its siding, garage, and trim, with darker shades of brown complimenting it in its windows, gutters, doors, and shutters. A deep brown roof may give dimensionality to the home, but needs the lighter-colored sides to help prevent the exterior from becoming too dark. It is also possible to compliment the lighter brown roof with a sky blue paint color, with white trim, to finish the look.
Paint colors with warmer tone (creme, beige, green, yellow) would work well if combined with brown roof. Some blues will look good on a brown roof, which will have grayish tones as well, but not appear overly matchy. You may think that white is one color, but there are shades with shades of red, blue, or yellow. As with other colors, you may be able to find gray paints that are tinted with a red or blue hue, so you do have options when picking a hue.
Side colors such as beige, yellow, green, red, and others, which are muted, just have a tint. Like any other neutral main color, you can shade your grey with blue, green, red, purple, yellow, etc. This house uses very clean mid-gray without any shading. If you love the idea of dark siding, but are not sure plain brown is your best option, consider a hue closer to fall red. Brown is a natural color, and it is generally warmer, so stay within these color schemes for siding.
Brown trim over lighter siding such as grey/green adds depth and gravitas to a design, and lighter siding colors can help to prevent a house becoming overly dark. Cooler rock colors, which are primarily lighter shades, such as off-white, white, blue, grey, green, etc., work well with brown roofing. Some ideas for the outside color of the home includes stone or brick samples which will work well with your chosen paint colors. One of the classic Southwest U.S. color combinations is terra-cotta painted or sprayed stucco, with a tan roof of shingles or tiles.