RAL 180-1 vs Open Seas
Where RAL 180-1 belongs to RAL Effect's range, Open Seas is a Sherwin-Williams color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. RAL 180-1 (LRV 49) reflects noticeably more light than Open Seas (LRV 39), a difference of 9 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 12.0, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
RAL 180-1 vs Open Seas in Real Spaces
1 real room side by side. Seeing RAL 180-1 and Open Seas in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. RAL 180-1 reflects noticeably more light off the walls, making the space read more open than Open Seas.
Color Details
RAL 180-1 vs Open Seas Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 180-1 on one side and Open Seas 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 RAL 180-1 comparisons
See how RAL 180-1 stacks up against other well-photographed colors across different brands and tones.
