Blue Beyond vs Cosmos
Both are Sherwin-Williams colors. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. At LRV 45 vs 38, Blue Beyond will read as the brighter of the two — a 7-point gap that matters most in north-facing or low-light rooms. They share a cool quality — useful to know if you're layering them in the same space. At ΔE 7.3, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 10 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Blue Beyond vs Cosmos in Real Spaces
10 real rooms side by side. Blue Beyond and Cosmos are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Blue Beyond has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The brightness difference is modest but present — Blue Beyond gives the walls a little more lift.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The brightness difference is modest but present — Blue Beyond gives the walls a little more lift.
Dining Room
Dining room light is typically the warmest in the house, which shifts both colors toward the red end of the spectrum compared to daylight. Blue Beyond reads slightly lighter here — a subtle but real difference in how open the space feels.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The brightness difference is modest but present — Blue Beyond gives the walls a little more lift.
Home Office
In a home office, wall color sits in your peripheral vision for hours at a time, so temperature and undertone matter more than you might expect. The brightness difference is modest but present — Blue Beyond gives the walls a little more lift.
Mudroom
A mudroom color needs to hold up under the most casual scrutiny: a glance as you're coming and going, often in mixed or artificial light. Blue Beyond reads slightly lighter here — a subtle but real difference in how open the space feels.
Patio
Patio colors are seen under changing outdoor light throughout the day — morning, midday, and golden hour each reveal different qualities. Blue Beyond reads slightly lighter here — a subtle but real difference in how open the space feels.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The brightness difference is modest but present — Blue Beyond gives the walls a little more lift.
Front Door
Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. Blue Beyond has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Blue Beyond vs Cosmos Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Beyond on one side and Cosmos on the other.
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.
More Blue Beyond comparisons
See how Blue Beyond stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 45, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 45), opening up a space where Blue Beyond encloses it.
At LRV 45 vs 6, Blue Beyond is decisively the brighter choice.
Purbeck Stone reads slightly lighter (LRV 52 vs 45), a gap that shows most in low-lit rooms.
Blue Beyond reflects far more light (LRV 45 vs 30), opening up a space where Evergreen Fog encloses it.
A 6-point LRV gap (52 vs 45) makes Mizzle the marginally brighter of the two.
Agreeable Gray reflects far more light (LRV 60 vs 45), opening up a space where Blue Beyond encloses it.
At LRV 58 vs 45, Accessible Beige is decisively the brighter choice.
At LRV 45 vs 27, Blue Beyond is decisively the brighter choice.
With LRVs of 45 and 43, the two reflect almost the same amount of light.
Blue Beyond reflects far more light (LRV 45 vs 4), opening up a space where Naval encloses it.
A 10-point LRV gap (55 vs 45) makes Tranquil Dawn the marginally brighter of the two.
At LRV 45 vs 13, Blue Beyond is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 45 vs 44), so neither reads brighter in a room.
Pure White reflects far more light (LRV 84 vs 45), opening up a space where Blue Beyond encloses it.
Blue Beyond reflects far more light (LRV 45 vs 21), opening up a space where Artichoke encloses it.
At LRV 66 vs 45, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 45, Shoji White is decisively the brighter choice.
At LRV 83 vs 45, Snowbound is decisively the brighter choice.
At LRV 45 vs 12, Blue Beyond is decisively the brighter choice.
At LRV 68 vs 45, Skimming Stone is decisively the brighter choice.
Blue Beyond reads slightly lighter (LRV 45 vs 41), a gap that shows most in low-lit rooms.
Calamine reflects far more light (LRV 68 vs 45), opening up a space where Blue Beyond encloses it.
Blue Beyond reflects far more light (LRV 45 vs 25), opening up a space where Treron encloses it.
At LRV 45 vs 12, Blue Beyond is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 45 vs 45), so neither reads brighter in a room.
Blue Beyond reflects far more light (LRV 45 vs 31), opening up a space where Pale Green encloses it.
Blue Beyond reflects far more light (LRV 45 vs 7), opening up a space where Pine Needle encloses it.
Blue Beyond reflects far more light (LRV 45 vs 24), opening up a space where Cement grey encloses it.
Guilford Green reflects far more light (LRV 57 vs 45), opening up a space where Blue Beyond encloses it.