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 | cool green tone |
| 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.
Closest matches by brand
6 brands within ΔE 5The closest matches per brand by ΔE2000, computed against each brand's full deck. Only colors within ΔE 5 (close enough to substitute on a wall) are shown — brands with no real match are left off. Tap any swatch for its full single-color spec; tap the brand title to browse all green from that brand.
Sherwin-Williams
Behr
PPG / Glidden
Glidden
Dutch Boy
Dunn-Edwards
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.
Benjamin Moore Once Upon a Time Equivalents at Other Brands
Matching Once Upon a Time from a different paint counter? Below is the single closest color in each major US deck and how close it really is. Remember that any paint store can also custom-tint Benjamin Moore 574 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Once Upon a Time
Sherwin-Williams has no exact twin of Once Upon a Time. The nearest is Envy (SW 6925) at ΔE 3.7 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 20 vs 21). Compare large swatches before substituting. See the full Envy swatch →
Behr Equivalent of Once Upon a Time
At Behr, the closest color to Once Upon a Time is Mermaid Harbor (490B-7) — very close at ΔE 2.38, though not an exact twin. It sits at the same lightness (LRV 21 vs 21) and carries a cool green undertone; sample both side by side if the room gets strong natural light. See the full Mermaid Harbor swatch →
PPG / Glidden Equivalent of Once Upon a Time
PPG / Glidden has no exact twin of Once Upon a Time. The nearest is Green Gloss (PPG1227-7) at ΔE 3.65 — close, but the difference shows next to trim and in side light. It runs slightly lighter (LRV 23 vs 21). Compare large swatches before substituting. See the full Green Gloss swatch →
Glidden Equivalent of Once Upon a Time
Glidden has no exact twin of Once Upon a Time. The nearest is Green Gloss (PPG1227-7) at ΔE 3.59 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 22 vs 21). Compare large swatches before substituting. See the full Green Gloss swatch →
Dutch Boy Equivalent of Once Upon a Time
Dutch Boy's nearest match is Croquet Green (128-7DB), visually identical in normal room light (ΔE 1.58). It runs slightly darker (LRV 19 vs 21) and carries a cool green undertone, so it substitutes for Once Upon a Time without repainting risk. See the full Croquet Green swatch →
Dunn-Edwards Equivalent of Once Upon a Time
Dunn-Edwards's nearest match is Shamrock Field (DE5664), visually identical in normal room light (ΔE 1.33). It runs slightly darker (LRV 19 vs 21) and carries a cool green undertone, so it substitutes for Once Upon a Time without repainting risk. See the full Shamrock Field swatch →