Venus is yellowish-white.
Mercury: grey.
Venus: yellowish-white.
Earth: light blue with white clouds; oceans and light scattered by the atmosphere make Earth prevailingly blue.
Mars: red-orange.
Jupiter: has orange and white bands; the white bands are colored by ammonia clouds, while the orange comes from ammonium hydrosulfide clouds.
Saturn: pale yellow; ammonia haze covers the whole planet and obscures redder clouds below.
Uranus: light blue; the color comes from methane clouds.
Neptune: light blue; like in the case of Uranus the color is due to methane.
Pluto: light brown; Pluto has never been visited by spacecraft, so the light brown color is an expectation based on the presence of dirty methane ice on the surface.
Also, I would like to add that the assignment of colors is somewhat subjective. For example, one person's blue might look more like green to somebody else. Astronomers rarely care about that, and use precise spectra when they need to obtain information from an object's color.
http://curious.astro.cornell.edu/about-us/58-our-solar-system/planets-and-dwarf-planets/planet-watching/249-what-color-is-each-planet-intermediate
