Benjamin Moore Once Upon a Time#288F50 · LRV 21
Once Upon a Time reads as a green / cool — dark — high drama, needs strong daylight or warm bulbs. The notes below cover the spec, what Benjamin Moore 574 actually looks like under different light, and the closest matches at competing US brands.
Color spec
| Brand | Benjamin Moore |
| Name | Once Upon a Time |
| SKU | 574 |
| Hex | #288F50 |
| RGB | 40, 143, 80 |
| HSL | 143°, 56%, 36% |
| LRV | 21 |
| Undertone | green / cool |
| Family | Green |
About Benjamin Moore Once Upon a Time
With an LRV of 21, Once Upon a Time is a deep, dramatic shade. It soaks up light in north-facing rooms and looks richest where strong daylight hits it. Its green undertone is the part to watch: it gets picked up by whatever sits next to it, so test it against your trim, floor and the room's main light before committing. Warm artificial light softens it; cool LED can make it look flat, so match your bulbs to the mood you want.
Once Upon a Time works best as a feature — a single wall, built-ins, a study or dining room — rather than wrapping a whole bright space. Greens bridge indoors and out, so they suit living rooms, kitchens and sunrooms.
Kompozit alternative
The closest hex in the Kompozit deck, ranked by ΔE2000 (perceptual color difference). ΔE under 2 is indistinguishable to most eyes; under 5 is a very close visual match.
Closest matches at every US brand
9 brands · top 5 each5 closest matches per brand by ΔE2000, computed against each brand's full deck. Tap any swatch for its full single-color spec; tap the brand title to browse all green from that brand.
Dunn-Edwards
Behr
PPG / Glidden
Sherwin-Williams
Valspar
Magnolia Home
Farrow & Ball
Clare
Similar Benjamin Moore colors
closest in the Benjamin Moore deckThe nearest shades to Once Upon a Time within Benjamin Moore's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
Coordinated palette
Generated by hue-rotating #288F50 in HSL space. Pair Once Upon a Time with one accent and one neutral — the swatches below are starting points, not final picks.
Accessibility (WCAG contrast)
WCAG 2.1: AA = 4.5:1 normal text · AA Large = 3:1 large text · AAA = 7:1 normal text.