Cool blues like cobalt, turquoise and ice blue, have yellow in them and tend to recede, which can help make a small space appear bigger.
This is the colour for my bedroom walls. Jotun LADY 4477 Deco Blue https://instagram.com/p/BInZhOVBGVg/
Jotun Kveldshimmel NSC S5010-R90B
Jotun Lady Pure Color 5180 Oslo
LADY 7163 Minty Breeze
Jotun Deco Blue 4477
Fargen Form fra Jotun, en lun gråfarge