Ref. #A9C9D7 · 6506
Vast Sky
55%LRV Value
Cool (Blue)Undertone
Vast Sky Technical Profile
What color is Vast Sky? It's a light cool blue with the hex code #A9C9D7. Colors similar to Vast Sky include Valspar Summer Rain, Vista Paint Soft Blue, Benjamin Moore Greenhow Blue. Vast Sky has a cool (blue) undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. At LRV 55, Vast Sky sits in the comfortable mid-light range — bright enough for living areas yet soft enough for bedrooms, and adaptable across most lighting conditions. 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 Vast Sky
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Vast Sky
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Vast Sky
#A9C9D7
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#838BAF
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Vast Sky
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Vast Sky 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 Sherwin-Williams Colors
Other Sherwin-Williams colors close to Vast Sky.
More blue colors from other brands
Cross-brand colors in the blue family — useful when you want a similar look from a different brand.
Vast Sky — Frequently Asked Questions
What undertone does Vast Sky have?
Vast Sky by Sherwin-Williams has a cool (blue) undertone and belongs to the blue color family.
What colors match Vast Sky from other brands?
The closest matches are Summer Rain by Valspar (#AAC8D5), Soft Blue by Vista Paint (#AACDDD), Greenhow Blue by Benjamin Moore (#ADC8D5). Always verify with physical samples.
What is the LRV of Vast Sky?
Vast Sky has an LRV of 55.1, where 0 is pure black and 100 is pure white.
Explore More with Vast Sky
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 Vast Sky's cool (blue) undertone matters more than its surface color — and how to read undertones in any paint chip.