Neptune Blue 570D-6 is a blue paint color from Behr. It has a hex value of #39729C, estimated LRV 15 and a cool (blue) undertone. Its closest cross-brand match is Winter's from Benjamin Moore (nearly identical), with 49 more equivalents across other brands.
Behr · #39729C · 570D-6
Neptune Blue
15%Estimated LRV
Cool (Blue)Undertone
Neptune Blue Technical Profile
HEX Code#39729C
RGB57, 114, 156
Estimated LRV15.3
UndertoneCool (Blue)
Digital swatches and calculated matches are approximations. Catalog LRV values may be calculated estimates, not manufacturer measurements. Data and matching method. Check the brand reference and physical samples before purchase.
Color Familyblue
BrandBehr
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Place physical samples beside your flooring and trim. Check them in daylight and with your evening lights before buying paint.
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Compare alternatives to Neptune Blue
Digital candidates from other paint brands, ranked by color similarity. Always verify with a physical sample. How we calculate match accuracy →
Winter's
Benjamin Moore
#41739D
Close digital match
Triumph Blue
Kilz
#3F73A0
Close digital match
Lovely Lapis
Dutch Boy
#346EA0
Similar digital color
Surf'S Up
Dunn-Edwards
#3377A2
Similar digital color
Zenith
Vista Paint
#49789D
Similar digital color
Planetarium
PPG
#1C70AD
Similar digital color
Peek-A-Boo Blue
Valspar
#3370AC
Similar digital color
Bowen Blue
Hirshfield's
#126DA8
Similar digital color
Danube
Sherwin-Williams
#2377A2
Similar digital color
Sky Blue
RAL
#2271B3
Similar digital color
Pea Flower Tea
Farrow & Ball
#4280B8
Visible digital difference
Comparing these brands? Order peel-and-stick samples of your top matches — Samplize buy 8 peel-and-stick samples, get 2 free.
Generated palette previews
Colors That Work With Neptune Blue
These are generated digital colors, not named manufacturer paints. Use the palette tools to find paint candidates, then compare physical samples.
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Neptune Blue
#39729C
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#6267A6
Trim & Molding
Digital white
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Neptune Blue
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Neptune Blue 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 Behr Colors
Other Behr colors close to Neptune Blue.
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 Blue — Frequently Asked Questions
What undertone does Neptune Blue have?
Neptune Blue by Behr has a cool (blue) undertone and sits in the blue color family. This is a digital classification, not a prediction of physical paint under every light. Compare samples in your own space.
What colors match Neptune Blue from other brands?
The closest cross-brand equivalents to Neptune Blue are Winter's by Benjamin Moore (a close digital match), Chicago Blues by Benjamin Moore (a close digital match), Triumph Blue by Kilz (a close digital match) — the best options for getting Neptune Blue's look from a brand your local store carries. Confirm with a physical sample, since sheen and lighting shift the final result.
What is the LRV of Neptune Blue?
Neptune Blue has a estimated lightness value of 15.3, on a scale where 0 is pure black and 100 is pure white — that makes it a deep, dramatic color best saved for accent walls, dining rooms, and cozy spaces where atmosphere matters more than reflected light.
Explore More with Neptune Blue
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.
Understanding Paint Color Undertones
Why Neptune Blue's cool (blue) undertone matters more than its surface color — and how to read undertones in any paint chip.