Neptune's Castle 8002-41B is a blue paint color from Valspar. It has a hex value of #A2C9D6, LRV 54 and a cool (blue) undertone. Its closest cross-brand match is Tropical Lagoon from PPG (nearly identical), with 49 more equivalents across other brands.
Ref. #A2C9D6 · 8002-41B
Neptune's Castle
54%LRV Value
Cool (Blue)Undertone
Neptune's Castle Technical Profile
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Neptune's Castle in Every Brand
The closest equivalent to Neptune's Castle in each major paint brand, ranked by how close the match reads. Always verify with a physical sample. How we calculate match accuracy →
ValsparNeptune's Castle
Nearly identical
PPGTropical Lagoon
Tropical Lagoon
PPG
Nearly identical
Hawaiian Ocean
Kilz
Nearly identical
Gift of the Sea
Vista Paint
Nearly identical
Alluring Blue
Behr
Very similar
Tender Blue
Dutch Boy
Very similar
Vast Sky
Sherwin-Williams
Very similar
Daydream
Benjamin Moore
Very similar
Soft Blue
Hirshfield's
Very similar
Blue Calico
Dunn-Edwards
Very similar
Dream .03
Colorhouse
Visible difference
Lulworth Blue
Farrow & Ball
Visible difference
Comparing these brands? Order peel-and-stick samples of your top matches — Samplize buy 8 peel-and-stick samples, get 2 free.
Recommended Pairings
Colors That Work With Neptune's Castle
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Neptune's Castle
#A2C9D6
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#818DB1
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Neptune's Castle
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Neptune's Castle 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 Valspar Colors
Other Valspar colors close to Neptune's Castle.
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 Castle — Frequently Asked Questions
What undertone does Neptune's Castle have?
Neptune's Castle by Valspar has a cool (blue) undertone and sits in the blue color family. The undertone shifts with light — warmer under 2700K bulbs, cleaner and cooler under 4000K daylight — so sample Neptune's Castle in your own space before committing.
What colors match Neptune's Castle from other brands?
The closest cross-brand equivalents to Neptune's Castle are Tropical Lagoon by PPG (a near-identical match), Hawaiian Ocean by Kilz (a near-identical match), Gift of the Sea by Vista Paint (a near-identical match) — the best options for getting Neptune's Castle'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's Castle?
Neptune's Castle has a Light Reflectance Value (LRV) of 54.3, on a scale where 0 is pure black and 100 is pure white — that makes it a mid-light color — bright enough for living areas yet soft enough for bedrooms, and adaptable across most lighting conditions.
Explore More with Neptune's Castle
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's Castle's cool (blue) undertone matters more than its surface color — and how to read undertones in any paint chip.