Cheap Asian Antiques

Horns of a Dilemma:painting a room?

I want to create two different color scheme for winter and summer in my bedroom.If I choose cream-mocha/coffee color sceme for winter and light green and aqua for summer days what color should I choose for the walls so that it harmonizes with both settings. I don't want (to be honest,I can't afford) to change wall colors with seasons. The walls are of brick and cement not of woodboards,so I can't simply attach wall papers and there is labouring cost too. Its a mediun sized room with a king size bed with a side table.The room is well lit( though not sunkissed.
Thanks in advance.
Thanks everybody.I had in mind the idea of beige or off white.But it varies according to different sites(e.g.dulux paints and behr ans asian paints). I am puzzled with lots of beiges,barleys and off-whites. Can anybody pls suggest a specific cream/beige/off white color code that will go with both of my color schemes from this site

# choose two different pair of wall and half of roof change the location of bed in different seasons as per suitability

Orient Unique Nature Set of Four Seasons Stone Statue Chinese painting stones $24.99 Time Remaining: 4d 14h 16m

Japanese SAKURA SUIHO 4 Seasons Painting Scroll 4pc Set $3,500.00 Time Remaining: 20d 9h 13m Buy It Now for only: $3,500.00