Ref. #429BB8 · 2058-40
Cool Blue
28%LRV Value
Cool (Blue)Undertone
Cool Blue Technical Profile
What color is Cool Blue? It's a deep cool blue with the hex code #429BB8. Colors similar to Cool Blue include Behr Jay Bird, Valspar Pool Party, MPC Ciel Bleu. Cool Blue has a cool (blue) undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. Its LRV of 28 gives Cool Blue 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. 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.
Colors Similar to Cool Blue
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Cool Blue
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Cool Blue
#429BB8
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#7988B4
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Cool Blue
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Cool 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 Benjamin Moore Colors
Other Benjamin Moore colors close to Cool 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.
Cool Blue — Frequently Asked Questions
What undertone does Cool Blue have?
Cool Blue by Benjamin Moore has a cool (blue) undertone and belongs to the blue color family.
What colors match Cool Blue from other brands?
The closest matches are Jay Bird by Behr (#459DB7), Pool Party by Valspar (#2D9ABC), Ciel Bleu by MPC (#49A1BC). Always verify with physical samples.
What is the LRV of Cool Blue?
Cool Blue has an LRV of 28.1, where 0 is pure black and 100 is pure white.
Explore More with Cool 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 Cool Blue's cool (blue) undertone matters more than its surface color — and how to read undertones in any paint chip.