Ref. #A9AAAB · DE6375
Castlerock
40%LRV Value
NeutralUndertone
Castlerock Technical Profile
What color is Castlerock? It's a medium neutral gray with the hex code #A9AAAB. Colors similar to Castlerock include Kilz Soft Steel, PPG Wright Soft Grey, PPG Flagstone. Castlerock has a neutral undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. Its LRV of 40 gives Castlerock depth without going dark, which makes it a strong choice for accent walls, libraries, and rooms with abundant natural light. Castlerock is a true neutral — pair with any wood, any metal, any trim color. Off-white trim works in most homes; brushed nickel or matte black hardware both read well across spaces. True neutrals read consistently across lighting conditions, which is why they're popular base colors. They inherit a faint warm cast under 2700K and a cool cast under 4000K, but never dramatically.
Colors Similar to Castlerock
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Castlerock
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Castlerock
#A9AAAB
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#8585AD
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Castlerock
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Castlerock 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 Dunn-Edwards Colors
Other Dunn-Edwards colors close to Castlerock.
More gray colors from other brands
Cross-brand colors in the gray family — useful when you want a similar look from a different brand.
Castlerock — Frequently Asked Questions
What undertone does Castlerock have?
Castlerock by Dunn-Edwards has a neutral undertone and belongs to the gray color family.
What colors match Castlerock from other brands?
The closest matches are Soft Steel by Kilz (#ACACAC), Wright Soft Grey by PPG (#ACADAD), Flagstone by PPG (#ACADAD). Always verify with physical samples.
What is the LRV of Castlerock?
Castlerock has an LRV of 40.1, where 0 is pure black and 100 is pure white.
Explore More with Castlerock
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 Castlerock's neutral undertone matters more than its surface color — and how to read undertones in any paint chip.