Turquoise and green hues provide continuity between the dining room and the parlor. They also continue into the kitchen. Note the small branch side table in the living room, which plays off the whimsical forest look in the dining room.
Same chairs, different colors. Take a basic set of matching wooden chairs and put your own stamp on them by painting each one a different hue. The trick here is to choose colors that have the same value (lightness or darkness), like all pastels, all midtones or all bright.
Same chair, same color family. A riff on the same‐chair, different‐colors idea, but with more subtlety. The idea here is to choose closely related colors – try earth tones or shades of a single hue.