Casco Bay vs RAL 710-4
Where Casco Bay belongs to Benjamin Moore's range, RAL 710-4 is a RAL Effect color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. Casco Bay (LRV 15) reflects noticeably more light than RAL 710-4 (LRV 9), a difference of 7 points that becomes especially apparent in rooms with limited natural light. The ΔE 7.2 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Casco Bay vs RAL 710-4 in Real Spaces
2 real rooms side by side. Casco Bay and RAL 710-4 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.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Casco Bay reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Casco Bay vs RAL 710-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Casco Bay on one side and RAL 710-4 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 Casco Bay comparisons
See how Casco Bay stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 15, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 15), opening up a space where Casco Bay encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 15), opening up a space where Casco Bay encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 15), opening up a space where Casco Bay encloses it.
At LRV 58 vs 15, Accessible Beige is decisively the brighter choice.
A 12-point LRV gap (27 vs 15) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 15), opening up a space where Casco Bay encloses it.
At LRV 55 vs 15, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 15, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 15), opening up a space where Casco Bay encloses it.
At LRV 66 vs 15, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 15, Shoji White is decisively the brighter choice.
A 3-point LRV gap (15 vs 12) makes Casco Bay the marginally brighter of the two.
A 7-point LRV gap (15 vs 8) makes Casco Bay the marginally brighter of the two.
At LRV 68 vs 15, Skimming Stone is decisively the brighter choice.
A 3-point LRV gap (15 vs 12) makes Casco Bay the marginally brighter of the two.
At LRV 45 vs 15, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 15), opening up a space where Casco Bay encloses it.