I've been talking a lot lately of color setting with neutrals and have applied a lot of that color scheme at home, I'll show you all soon. When using similar colors within the same range, I like to add colors of accent both in order to make a transition between black and white less sharp but also to in hence contrast when using similar tones of a certain color. My favorite accent colors right know is yellow, not a bright version but more of a subtle tone, like mustard or like the base of my still favorite fabric, the tiger velvet below. I also really like accents of blue and green.