I could use some advice in selecting a color for a sideboard!

The color scheme for my dining area is creams, blues, and grays with natural wood accents (farmhouse table and light fixture). I was thinking of doing a blue sideboard (maybe a lighter vintage blue?) but I'm worried it'll be too one-note or "matchy" with my other decor. Should I go bold with a darker sideboard... maybe a deep blue, a dark stain, or darker gray?

My dining area also opens up to my kitchen (second photo) which features a lot of white (SW Alabaster cabinets, white backsplash, and white quartz countertops) and a gray island (SW Unusual Gray), so I want my sideboard to coordinate with these colors too!

The sideboard will go on the wall behind the dining table where there are currently paintings sitting on the floor.

Any ideas?