Brillant blue

How Brillant blue behaves on a wall

RAL Colors publishes a light reflectance value of 15.3 for this shade. At LRV 15.3 this is a dark shade. It absorbs far more light than it gives back, which reads as depth in a bright room and as gloom in a north-facing one. Expect to prime if you are covering something much lighter. For trim that reads as a clear edge rather than a smudge, aim about 30 LRV points away — roughly LRV 45 and up. With 85 points between its strongest and weakest channel it holds a readable blue cast, so it will not flatten into a neutral once it is on four walls. Order by the code, not the name, and put a test patch on the wall before you commit — a screen cannot show you how this shade behaves in your own light.