Ref. #778584 · CW-645
Apollo Blue
22%LRV Value
Cool (Green)Undertone
Apollo Blue Technical Profile
What color is Apollo Blue? It's a deep cool gray with the hex code #778584. Colors similar to Apollo Blue include Sherwin-Williams Portsmouth, Behr Juniper Ash, PPG Rough Ride. Apollo Blue has a cool (green) undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. With an LRV of 22, Apollo Blue creates a dramatic, enveloping mood — best on accent walls, dining rooms, and intimate spaces where atmosphere matters more than reflected light. As a cool neutral, Apollo Blue pairs with cool whites for trim, gray-toned or rift-cut oak floors, and brushed nickel or polished chrome hardware. Black accents and natural greenery add contrast. Cool neutrals hold their crisp quality under 4000K+ daylight bulbs. Under 2700K warm light they soften considerably — particularly true for any blue or green undertone.
Colors Similar to Apollo Blue
Closest digital match based on color values. Always verify with physical samples.
Recommended Pairings
Colors That Work With Apollo Blue
Timeless pairing with clean white trim and a tonal accent wall
Side Walls
Apollo Blue
#778584
Accent Wall
Tonal Shift
A warm shift that adds depth without clashing.
#839AAC
Trim & Molding
Pure White
Crisp white trim for a clean, traditional look.
#FFFFFF
Color Palettes for Apollo Blue
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Apollo 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 Apollo Blue.
More gray colors from other brands
Cross-brand colors in the gray family — useful when you want a similar look from a different brand.
Apollo Blue — Frequently Asked Questions
What undertone does Apollo Blue have?
Apollo Blue by Benjamin Moore has a cool (green) undertone and belongs to the gray color family.
What colors match Apollo Blue from other brands?
The closest matches are Portsmouth by Sherwin-Williams (#768482), Juniper Ash by Behr (#798885), Rough Ride by PPG (#7A8687). Always verify with physical samples.
What is the LRV of Apollo Blue?
Apollo Blue has an LRV of 22.4, where 0 is pure black and 100 is pure white.
Explore More with Apollo 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 Apollo Blue's cool (green) undertone matters more than its surface color — and how to read undertones in any paint chip.