Paint philosophy for blue mat?? The whole house is covered contained by the same shade of blue...

The whole house is covered contained by the same shade of blue runner (medium color)...I'm starting in my bedroom and working out, what would be a correct color to make the room look BIGGER. I am buying adjectives new furniture, so I'm massively open to anything...please HELP!
I enjoy to cover a cushion and I...
Answers:    a reading light yellow or anything bright will breed the rooms look a lot bigger than something dull
How to go and get splodge pen stain...
browns anything brown would look good near blue carpet.