Make your baseboard more dramatic.add small pieces of trim to the top of existing baseboard, add a few inches and add another piece of molding. Paint the wall and trim white. This also works for crown molding too! <-- or fake a baseboard altogether
Maybe go for a slightly darker duck egg blue to refresh kitchen? An inspirational image from Farrow and Ball - A bedroom with walls in Green Blue nr 84 Estate Emulsion and ceiling/trim in Wimborne White nr 239 Estate Emulsion and Estate Eggshell.