Ref. #6A90B4 · 237
Cook's Blue
26%LRV Value
NeutralUndertone
Cook's Blue Technical Profile
What color is Cook's Blue? It's a deep cool blue with the hex code #6A90B4. Colors similar to Cook's Blue include Hirshfield's Heavenly Sky, Vista Paint Postcard Perfect, Vista Paint Heavenly Sky. Cook's Blue has a neutral undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. Its LRV of 26 gives Cook's 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 Cook's Blue
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Cook's Blue
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Cook's Blue
#6A90B4
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 Cook's Blue
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Cook's 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 Farrow & Ball Colors
Other Farrow & Ball colors close to Cook's 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.
Cook's Blue — Frequently Asked Questions
What undertone does Cook's Blue have?
Cook's Blue by Farrow & Ball has a neutral undertone and belongs to the blue color family.
What colors match Cook's Blue from other brands?
The closest matches are Heavenly Sky by Hirshfield's (#6B90B3), Postcard Perfect by Vista Paint (#6E91B3), Heavenly Sky by Vista Paint (#688DB1). Always verify with physical samples.
What is the LRV of Cook's Blue?
Cook's Blue has an LRV of 26.3, where 0 is pure black and 100 is pure white.
Explore More with Cook's 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 Cook's Blue's neutral undertone matters more than its surface color — and how to read undertones in any paint chip.