A bright green door ties in with foliage and looks beautiful with SW Cyberspace dark blue siding. Discover the best blue exterior paint colors for your home. This dark blue house has SW Cyberspace siding with BM Chelsea Gray trim and a BM Split Pea front door. Discover the best blue paint color ideas for your home exterior.#exteriorpaintcolors #blueexteriorpaintcolors #swcyberspace #bmchelseagray #greenfrontdoor #exteriorfrontdoorcolors #thecolorconcierge