Ref. #003E55 · MP28161
What color is Cabochon Blue Met.? It's a deep cool blue with the hex code #003E55. Colors similar to Cabochon Blue Met. include Benjamin Moore Hidden Sapphire, Sherwin-Williams Loyal Blue. Comparing swatches side by side is the best way to spot the subtle differences that distinguish these close color relatives. Cabochon Blue Met. has a cool (blue) undertone, which affects how it pairs with trim, flooring, and adjacent wall colors. Understanding a color's undertone is key to avoiding combinations that clash — it often matters more than the surface color itself. Cabochon Blue Met. (#003E55) by MPC is a deep blue paint color with a striking intensity that commands attention. It delivers a grounded richness that adds drama and sophistication. On the temperature spectrum this shade carries a cool cast, lending calm and collected elegance. In its RGB breakdown, blue is the dominant channel, which gives it a subtle cool, atmospheric depth even under different lighting conditions. At an LRV of 20 it absorbs more light than it reflects, creating a moody, enveloping atmosphere. Deep blues like this deliver striking navy elegance in dining rooms, bedrooms, and exterior shutters. Satin or semi-gloss finishes help deep colors reflect just enough light to show their full depth, especially on accent walls and trim. For color coordination, Cabochon Blue Met. pairs beautifully with orange tones for bold complementary contrast, or with neighboring blue and teal hues for a harmonious, flowing palette. Its cool (blue) undertone means trim and ceiling whites should lean neutral to avoid a jarring clash. If MPC is unavailable in your area, close cross-brand alternatives exist from Benjamin Moore, Sherwin-Williams, Vista Paint and others. In terms of mood and atmosphere, Cabochon Blue Met. projects a confident, tailored sophistication associated with classic nautical and Art Deco aesthetics. Designers often reach for shades like this when the goal is to shape how a room feels, not just how it looks. This shade is a natural fit for nautical, classic traditional, and Hamptons-style interiors. As part of the MPC palette, Cabochon Blue Met. benefits from a curated selection of coordinating colors that the brand recommends for trim, accent, and ceiling pairings. As with any paint color, Cabochon Blue Met. can shift noticeably between natural daylight, warm incandescent, and cool LED lighting — testing a sample swatch on your wall under different conditions is always recommended. Deep shades generally benefit from a quality primer and may require an extra coat for even, streak-free coverage. Deep tones pair beautifully with velvet upholstery, burnished metal fixtures, dark-stained wood, and textured wallcoverings on adjacent surfaces. You can order Cabochon Blue Met. (MP28161) directly from MPC or through major paint retailers, and we recommend purchasing a peel-and-stick sample to preview it on your wall before buying gallons.
Timeless pairing with clean white trim and a tonal accent wall

Side Walls
#003E55
Accent Wall
A warm shift that adds depth without clashing.
#1B2E6D
Trim & Molding
Crisp white trim for a clean, traditional look.
#FFFFFF
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Other MPC colors close to Cabochon Blue Met..
Closest digital match based on color values. Always verify with physical samples.
#00425A
© 2026 Paint Color HQ. Color data is approximate. Always verify with physical samples before purchasing.
Color schemes built around this color — each swatch links to the closest matching paint.
Warm tones with cozy appeal — welcoming and comfortable
Cool hues with soft contrast — serene and restful
Complementary hues with punch — dynamic and striking