Overview
Small differences between whites become noticeable beside existing paint. Use physical samples to choose the relationship between the shutter, architrave and wall. The right undertone matters more than a colour's appearance on a screen.
Colour match guide
Glacial White, Shell and Antique have different undertones. Place physical samples beside the architrave, wall and skirting, then compare them in daylight and artificial light. Choose the closest trim tone for an integrated finish, or repeat a deliberate contrast elsewhere in the room. Order samples before confirming the colour.
