Neptune'S Folly is a calming choice — works as both a whole-house neutral when lightened and a dramatic anchor when deepened to navy. At LRV 36 it carries real depth without going dark — a good choice for accent walls, libraries, and rooms with abundant natural light. Skip it in low-light north-facing rooms unless you want a deliberately cool, cocooning effect, since blue can read chilly there.
Ref. #90A1C5 · 240-4DB
Neptune'S Folly
36%LRV Value
Neptune'S Folly Technical Profile
What color is Dutch Boy Neptune'S Folly (240-4DB)? It's a medium cool blue — hex #90A1C5, LRV 36. The closest cross-brand equivalent to Neptune'S Folly is Behr Ash Violet — a near-identical match on the wall, with Benjamin Moore Pressed Violet and Benjamin Moore Blue also close. Its LRV of 36 gives Neptune'S Folly depth without going dark, which makes it a strong choice for accent walls, libraries, and rooms with abundant natural light. Pair it with cool whites like Chantilly Lace, walnut or rift-cut oak floors, and brushed nickel or polished chrome hardware. Brass accents add warmth for a layered look. At mid saturation, this color sits at a flexible mid-point — bold enough to anchor a room without dominating, and pairs cleanly with both crisp and creamy whites. Blues stay crisp under 4000K+ cool LEDs. Under 2700K warm bulbs they can read grayer or shift slightly purple — particularly true for mid-tone and saturated blues. At mid saturation the lighting shift is moderate but real — sample under both warm-bulb evening light and cool-daylight morning light before committing.
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Colors Similar to Neptune'S Folly
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Neptune'S Folly
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Neptune'S Folly
#90A1C5
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#8C85AD
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Neptune'S Folly
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Neptune'S Folly Room Palettes
Color schemes built around this color — each swatch links to the closest matching paint.
Warm & Inviting
Warm tones with cozy appeal — welcoming and comfortable
Cool & Calm
Cool hues with soft contrast — serene and restful
Bold Contrast
Complementary hues with punch — dynamic and striking
Similar Dutch Boy Colors
Other Dutch Boy colors close to Neptune'S Folly.
More blue colors from other brands
Cross-brand colors in the blue family — useful when you want a similar look from a different brand.
Neptune'S Folly — Frequently Asked Questions
What colors match Neptune'S Folly from other brands?
The closest cross-brand equivalents to Neptune'S Folly are Ash Violet by Behr (a near-identical match), Pressed Violet by Benjamin Moore (a near-identical match), Blue by Benjamin Moore (a very close match). These are ranked with the CIEDE2000 color-difference formula, which scores how similar two colors actually look to the eye rather than matching them by name — so they're the best options for getting Neptune'S Folly's look in a brand your local store carries. Always confirm with a physical sample, since sheen and lighting shift the final result.
What is the LRV of Neptune'S Folly?
Neptune'S Folly has a Light Reflectance Value (LRV) of 35.5, on a scale where 0 is pure black and 100 is pure white. That makes it a mid-depth color with real presence — strong on accent walls, libraries, and rooms with good natural light. LRV is the most reliable guide to how light or dark a paint will read in a real room — more dependable than the swatch on your screen, which varies by monitor.
Explore More with Neptune'S Folly
Related Reading
How to Match Paint Colors Across Brands
The science behind Delta E and CIEDE2000 — find a Behr equivalent of any Sherwin-Williams shade, or a Benjamin Moore alternative when your store is out of stock.
Paint Sheen Guide
Flat, eggshell, satin, or semi-gloss — the right finish for Neptune'S Folly depends on the room. Here's how to choose.