Shamrock Green

Saturated enough that everything else in the room answers to it. Vista Paint files it as 7549.

Chroma 29.3 is high enough to dominate a room's palette rather than join it. On one wall of an otherwise neutral room, this reads as a deliberate choice rather than an overwhelming one.

A warm bulb is the easiest fix if this reads colder than expected once it is on the wall. LRV 14.0 puts it in the middle of the scale, but saturation, not lightness, is what you will react to.

Worth checking before committing to a full wall: pinks and warm blush tones nearby - in a floor, a rug, a piece of furniture - will read as a clash here, not a complement, since the two colors sit at opposite ends of the spectrum.

The lighter the trim beside this, the more it will seem to glow - a side effect of the light-reflectance gap rather than anything special about the trim color. The safest multi-color scheme moves from this dark wall to a noticeably lighter secondary tone, then to a near-white ceiling - three genuinely different depths rather than three shades of the same idea (LRV 14.0, 50 and 85, if you're matching by the numbers).

For a secondary wall, Dunn-Edwards Playful Plum gives a natural step up in brightness without feeling like a mismatch (roughly 21.8 LRV points apart). If the wall needs to be washable, eggshell is the highest sheen worth considering before the color starts looking artificial under light.

Switching brands, PPG Pinehurst (1140-6) is the closest equivalent at delta-E 1.9, near enough for most rooms. Only 1 other-brand color land within delta-E 2 of this one, which makes it comparatively unusual.

It is lighter than 11 percent of the Vista Paint range. This is a crowded part of the scale - 310 colors measure within a point of 14.0 - so most brands will have something close. The name is not unique: Behr P420-5 also sells a color called Shamrock Green, and it is not the same shade. Vista Paint lists it in the K codes, alongside 1,318 other colors.