Bleu céleste
Tollens
Try CR4103-2 on your wall
Take a photo of the room. Muro puts this color on the walls in the light the room actually has.
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How Bleu céleste behaves on a wall
Tollens publishes a light reflectance value of 62.8 for this shade. At LRV 62.8 this is a light shade that still carries colour rather than reading as off-white. It gives back most of the light in the room, which suits north-facing walls that need the help. For trim that reads as a clear edge rather than a smudge, aim about 30 LRV points away in either direction — under LRV 33 or over LRV 93. With 90 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.
Bleu céleste equivalents in other paint brands
The closest color to Tollens Bleu céleste from each brand we carry, measured with CIEDE2000 on the manufacturers' published color values. Below 1 the difference is practically invisible; below 2 you'd only notice it with the chips side by side. Screens and printed chips aren't paint, so compare real samples before you buy. In the Muro app you can put two of them on a photo of your own wall and look at them in your light.