I can not help but get excited over spaces like this. Color excites me and drives my inspiration. Take a white walled space like this one and fill it with pops of color and instantly you gain moments of surprise and intrigue.
Even more neutral or dark spaces look bright and beautiful when you add a few color splashes.
Can't get enough color (like me?)... You can still introduce more even if your walls are doused with color. Complimentary burst of color won't fight against your walls but these elements will add enhancement.
So, in my opinion, no matter if your walls are white and bare, dark and neutral, or bright and colorful.... accents of brilliant hues will add some fun and interest to any space. Do it!