Mosaic
What Mosaic Actually Looks Like
Mosaic is a saturated, mid-depth blue that reads as a confident, true blue in most light conditions. It sits in that range between a classic navy and a bright cobalt, leaning more toward cobalt without tipping into electric territory. In strong natural light it shows its full, clear blue character. In lower light or north-facing rooms it deepens noticeably and can feel close to a deep ink blue. It is not a dusty or muted blue, and it is not particularly gray-leaning.
Mosaic Undertones
The color facts for Mosaic do not list a specific undertone read, and without independent research this is a place to be honest. Visually, from the RGB values, the blue channel dominates clearly with a moderate green component and a lower red component. That balance suggests the color leans slightly toward a cooler, cleaner blue rather than a warmer violet blue, but you should pull a large sample before committing, because blues in this depth range are famously light-sensitive and can shift toward purple or toward teal depending on your room's light source and the colors surrounding it.
Where Mosaic Works Best
A color with an LRV in the low-to-mid teens is genuinely dark. It will absorb light rather than reflect it, which makes it a strong choice for creating a cocooned or dramatic feel on a focal wall, in a library or study, on kitchen cabinetry, or as an exterior front door or shutter color. It can work on all four walls of a room, but be prepared for the space to feel considerably smaller and moodier. On ceilings it creates a striking sky-like effect in rooms with good natural light. Trim, millwork, and furniture will pop against it, especially in whites and warm creams.
Where to put Mosaic
This is the natural home for a color this deep and saturated. Four walls in Mosaic create a focused, enveloping atmosphere that works well for reading and concentration. Pair white trim and warm wood shelving to keep the space from feeling heavy.
Deep blues have a long history in dining rooms because candlelight and warm bulb temperatures bring out their richness at night. Mosaic at this depth will reward evening entertaining more than bright daytime dining, so consider your room's primary use before committing.
On a front door or shutters against a white, cream, or gray body color, Mosaic reads as a classic and assertive blue without veering into trendy territory. Its LRV is low enough that it will hold up well outdoors without appearing washed out in strong sun.
A color this saturated on lower cabinets paired with white uppers is a high-contrast choice that photographs well and ages gracefully. Brass pulls and hardware complement the blue's cool-to-neutral character without creating a matchy-matchy look.
What to Pair With Mosaic
No coordinating colors are listed in our database for Mosaic CC-874 at this time. As a general pairing principle, a deeply saturated mid-blue like this reads best alongside crisp whites on trim, warm wood tones, brass or unlacquered bronze hardware, and natural textiles in linen or ochre. Avoid pairing with cool grays, which can fight the blue's warmth and make the combination feel flat.
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Colors that clash with Mosaic
If Mosaic is used in one room that opens to a cool gray adjacent space, the two colors can fight each other and make both rooms look less intentional.
Strong orange or terra cotta furnishings are technically complementary to blue on the color wheel, but at this saturation level the combination can feel jarring rather than balanced.
In a windowless or very dim room, Mosaic will read much darker than its swatch suggests and can make the space feel oppressive rather than cozy.
Common questions
The code is CC-874, the hex is #3862A3, and the LRV is 14.92, which confirms this is a genuinely dark color that will absorb more light than it reflects.
Yes. Mosaic CC-874 is available in both interior and exterior formulations, so you can use it on walls, cabinetry, and exterior applications like doors and trim.
Deep, saturated colors like this almost always require two full coats for even coverage, and tinting your primer to a blue base coat will help you achieve true color in fewer passes. Skipping a tinted primer on a previously light wall often means you need a third coat.
Yes, and the shift can be significant. Warm incandescent or warm LED bulbs will push the color toward a richer, slightly warmer blue. Cool daylight bulbs will make it feel crisper and more stark. North light tends to deepen it toward a blue-black. Test a large sample and look at it across different times of day before committing.