This colour was first used at the classic Georgian Inchyra House to work with moody Scottish skies. It can be found on the exterior doors of their very impressive byre (barn) which nestles at the bottom of a rather grey and imposing brae (hill). Such is the magic of our colours, this aged blue grey, can read more grey, blue or even green depending on the light. A great alternative to charcoal, use it to inject a hint of colour into a super contemporary home, or create a moody feel by combining it with Black Blue or Vardo. Dark Tones Primer & Undercoat.