Brookside

This is a color that decides the room rather than supporting it. Vista Paint's designation for it is 7455.

Chroma 27.2 is high enough that the color will bounce onto light surfaces, so expect it everywhere, not only on the wall. A powder room or a nook is often the right scale for a color this strong - enough impact without living with it in every sightline.

South light flatters it. In a north-facing room it can turn cold, so sample that wall first. LRV 35.0 tells you how much light comes back, which matters less here than how much color comes with it.

If the room already has reds and brick tones in the floor, a rug, or the furniture, this color will fight it rather than sit well beside it - the two sit at opposite ends of the color spectrum, which is exactly why they clash instead of blend.

Next to it, white trim reads brighter and cooler than it does anywhere else in the house - the gap in light reflectance is what does that, not the trim paint itself. A natural scheme here moves in three clear steps: this color on the main wall, a noticeably lighter mid-tone for a second wall or built-in, and a near-white on the ceiling. Each jump should be obvious at a glance, not something you have to squint to tell apart (roughly 35.0, 60 and 85 on the light-reflectance scale, for reference).

Benjamin Moore Hint of Violet pairs well as a second surface - close enough in feel to belong in the same room, far enough in lightness to read as two distinct walls (about 31.2 points apart on the reflectance scale). Matte suits a color this strong - a glossier sheen would turn every light source in the room into a visible hotspot on the wall.

Benjamin Moore Harbor Side Blue (740) runs close enough - delta-E 2.26 - that swapping brands should not change how the room looks. Across the other brands, nothing lands within delta-E 2 of this one - there is no easy substitute.

It is lighter than 33 percent of the Vista Paint range. The name is not unique: Valspar 4008-6A and Vista Paint H0083 also sell a color called Brookside, and it is not the same shade. Vista Paint lists it in the K codes, alongside 1,318 other colors.