Moody Blue vs Uncertain Gray paint color comparison

Moody Blue vs Uncertain Gray

Both from Sherwin-Williams's palette. Hue-wise, Moody Blue belongs to the blue-grey family and Uncertain Gray to the grey family. Uncertain Gray (LRV 43) reflects noticeably more light than Moody Blue (LRV 26), a difference of 16 points that becomes especially apparent in rooms with limited natural light. Moody Blue runs cool while Uncertain Gray is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 14.2, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Moody Blue vs Uncertain Gray in Real Spaces

3 real rooms side by side. Seeing Moody Blue and Uncertain Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.

Bedroom

The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Uncertain Gray reflects noticeably more light off the walls, making the space read more open than Moody Blue.

Moody BlueSw Moody Blue Bedroom

@diy_zack

Uncertain GrayGray bedroom color by Sherwin Williams Uncertain Gray

@fresh.look.colour

Dining Room

A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Uncertain Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.

Moody BlueSw Moody Blue Dining Room

@morrisdesignco

Uncertain GrayGray dining room interior with Sherwin Williams Uncertain Gray

@mymodernwarmth

Bathroom

Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Uncertain Gray reflects noticeably more light off the walls, making the space read more open than Moody Blue.

Moody BlueSherwin Williams Moody Blue bathroom color

@coastalpaintingservicesllc

Uncertain GrayGray bathroom design with Sherwin Williams Uncertain Gray

@shorestudiostyle

Color Details

Moody Blue
Sherwin-Williams · 6221
LRV26.5
BrandSherwin-Williams
Number6221
Undertone—
TemperatureCool
BrightnessMedium
Uncertain Gray
Sherwin-Williams · 6234
LRV42.7
BrandSherwin-Williams
Number6234
Undertone—
TemperatureNeutral
BrightnessMedium

Moody Blue vs Uncertain Gray Simulated Comparison

5 simulated room previews — drag the slider on each to see Moody Blue on one side and Uncertain Gray on the other.

Bathroom
Bedroom
House
Kitchen Cabinets
Living Room

Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.