Color spec
| Brand | Dutch Boy |
| Name | Neptune's Folly |
| SKU | 240-4DB |
| Hex | #90A1C5 |
| RGB | 144, 161, 197 |
| HSL | 221°, 31%, 67% |
| LRV | 35 |
| Undertone | cool blue tone |
| Family | Blue |
About Dutch Boy Neptune's Folly
Neptune's Folly sits in the mid-range at LRV 35, so it shifts visibly through the day — lighter and more open in morning light, deeper and moodier after dark. Its blue 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. South-facing rooms will pull it lighter and warmer, while north light cools it down.
Neptune's Folly is versatile enough for full rooms but has enough depth to anchor a space, so it suits living rooms, bedrooms and cabinetry alike. Blues calm a room, which makes them popular in bedrooms, bathrooms and home offices.
Closest matches by brand
13 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 blue from that brand.
Sherwin-Williams
Behr
Benjamin Moore
Valspar
PPG / Glidden
Glidden
HGTV Home by Sherwin-Williams
Dunn-Edwards
Farrow & Ball
Diamond Vogel
Hirshfield's
C2 Paint
Kompozit
Similar Dutch Boy colors
closest in the Dutch Boy deckThe nearest shades to Neptune's Folly within Dutch Boy'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 #90A1C5 in HSL space. Pair Neptune's Folly 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.
Dutch Boy Neptune's Folly Equivalents at Other Brands
Matching Neptune's Folly 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 Dutch Boy 240-4DB directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Behr Equivalent of Neptune's Folly
At Behr, the closest color to Neptune's Folly is Blue Hydrangea (PPU15-13) — very close at ΔE 2.52, though not an exact twin. It runs slightly lighter (LRV 37 vs 35) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Blue Hydrangea swatch →
Benjamin Moore Equivalent of Neptune's Folly
Benjamin Moore's nearest match is Pressed Violet (CSP-520), visually identical in normal room light (ΔE 1.75). It runs slightly lighter (LRV 38 vs 35) and carries a cool blue undertone, so it substitutes for Neptune's Folly without repainting risk. See the full Pressed Violet swatch →
Valspar Equivalent of Neptune's Folly
At Valspar, the closest color to Neptune's Folly is Sweet Violet (4002-8A) — very close at ΔE 3.33, though not an exact twin. It sits at the same lightness (LRV 35.7 vs 35) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Sweet Violet swatch →
Glidden Equivalent of Neptune's Folly
At Glidden, the closest color to Neptune's Folly is Charisma Blue (30BB 39/165) — very close at ΔE 2.37, though not an exact twin. It runs slightly lighter (LRV 39 vs 35) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Charisma Blue swatch →
Dunn-Edwards Equivalent of Neptune's Folly
At Dunn-Edwards, the closest color to Neptune's Folly is Midnight Blush (DE5913) — very close at ΔE 3.36, though not an exact twin. It runs slightly darker (LRV 33 vs 35) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Midnight Blush swatch →
Hirshfield's Equivalent of Neptune's Folly
Hirshfield's has no exact twin of Neptune's Folly. The nearest is Velvet Robe (1276) at ΔE 3.55 — close, but the difference shows next to trim and in side light. It runs slightly lighter (LRV 37 vs 35). Compare large swatches before substituting. See the full Velvet Robe swatch →
C2 Paint Equivalent of Neptune's Folly
C2 Paint has no exact twin of Neptune's Folly. The nearest is Blue Persuasion (C2-767) at ΔE 4.37 — close, but the difference shows next to trim and in side light. It runs slightly lighter (LRV 37 vs 35). Compare large swatches before substituting. See the full Blue Persuasion swatch →
Kompozit Equivalent of Neptune's Folly
Kompozit has no exact twin of Neptune's Folly. The nearest is Velvet Robe (1276) at ΔE 3.55 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 35 vs 35). Compare large swatches before substituting. See the full Velvet Robe swatch →