Rhythmic Blue vs Vast Sky
Both from Sherwin-Williams's palette. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Rhythmic Blue (LRV 69) reflects noticeably more light than Vast Sky (LRV 55), a difference of 14 points that becomes especially apparent in rooms with limited natural light. Both lean cool, so they'll behave similarly in mixed or changing light conditions. The ΔE 9.6 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Rhythmic Blue vs Vast Sky Simulated Comparison
5 simulated room previews — drag the slider on each to see Rhythmic Blue on one side and Vast Sky 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 Rhythmic Blue comparisons
See how Rhythmic Blue stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 69), opening up a space where Rhythmic Blue encloses it.
Their light reflectance is nearly identical (LRV 69 vs 69), so neither reads brighter in a room.
Rhythmic Blue reflects far more light (LRV 69 vs 6), opening up a space where Iron Ore encloses it.
At LRV 69 vs 52, Rhythmic Blue is decisively the brighter choice.
At LRV 69 vs 30, Rhythmic Blue is decisively the brighter choice.
Rhythmic Blue reflects far more light (LRV 69 vs 52), opening up a space where Mizzle encloses it.
A 9-point LRV gap (69 vs 60) makes Rhythmic Blue the marginally brighter of the two.
Rhythmic Blue reads slightly lighter (LRV 69 vs 58), a gap that shows most in low-lit rooms.
Rhythmic Blue reflects far more light (LRV 69 vs 27), opening up a space where Denim Drift encloses it.
At LRV 69 vs 43, Rhythmic Blue is decisively the brighter choice.
At LRV 69 vs 4, Rhythmic Blue is decisively the brighter choice.
Rhythmic Blue reflects far more light (LRV 69 vs 55), opening up a space where Tranquil Dawn encloses it.
Rhythmic Blue reflects far more light (LRV 69 vs 13), opening up a space where Bancha encloses it.
Rhythmic Blue reflects far more light (LRV 69 vs 44), opening up a space where Hardwick White encloses it.
At LRV 84 vs 69, Pure White is decisively the brighter choice.
At LRV 69 vs 21, Rhythmic Blue is decisively the brighter choice.
Rhythmic Blue reads slightly lighter (LRV 69 vs 66), a gap that shows most in low-lit rooms.
Shoji White reads slightly lighter (LRV 74 vs 69), a gap that shows most in low-lit rooms.
Snowbound reflects far more light (LRV 83 vs 69), opening up a space where Rhythmic Blue encloses it.
Rhythmic Blue reflects far more light (LRV 69 vs 12), opening up a space where Pewter Green encloses it.
With LRVs of 69 and 68, the two reflect almost the same amount of light.
At LRV 69 vs 41, Rhythmic Blue is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 69 vs 68), so neither reads brighter in a room.
At LRV 69 vs 25, Rhythmic Blue is decisively the brighter choice.
Rhythmic Blue reflects far more light (LRV 69 vs 12), opening up a space where Vintage Vogue encloses it.
Rhythmic Blue reflects far more light (LRV 69 vs 45), opening up a space where Saybrook Sage encloses it.
At LRV 69 vs 31, Rhythmic Blue is decisively the brighter choice.
At LRV 69 vs 7, Rhythmic Blue is decisively the brighter choice.
At LRV 69 vs 24, Rhythmic Blue is decisively the brighter choice.
A 12-point LRV gap (69 vs 57) makes Rhythmic Blue the marginally brighter of the two.