River Blue vs Marine Blue
River Blue is a Benjamin Moore color while Marine Blue comes from Little Greene. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. At LRV 7 vs 4, River Blue will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. They share a blue quality — useful to know if you're layering them in the same space. At ΔE 6.0, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
River Blue vs Marine Blue in Real Spaces
2 real rooms side by side. River Blue and Marine Blue 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.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
River Blue vs Marine Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see River Blue on one side and Marine Blue 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 River Blue comparisons
See how River Blue stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 7, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 7), opening up a space where River Blue encloses it.
With LRVs of 7 and 6, the two reflect almost the same amount of light.
At LRV 52 vs 7, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 7, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 7), opening up a space where River Blue encloses it.
At LRV 60 vs 7, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 7), opening up a space where River Blue encloses it.
Denim Drift reflects far more light (LRV 27 vs 7), opening up a space where River Blue encloses it.
At LRV 43 vs 7, French Gray is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 7 vs 4), so neither reads brighter in a room.
Tranquil Dawn reflects far more light (LRV 55 vs 7), opening up a space where River Blue encloses it.
Bancha reads slightly lighter (LRV 13 vs 7), a gap that shows most in low-lit rooms.
Hardwick White reflects far more light (LRV 44 vs 7), opening up a space where River Blue encloses it.
At LRV 84 vs 7, Pure White is decisively the brighter choice.
At LRV 21 vs 7, Artichoke is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 7), opening up a space where River Blue encloses it.
Shoji White reflects far more light (LRV 74 vs 7), opening up a space where River Blue encloses it.
Snowbound reflects far more light (LRV 83 vs 7), opening up a space where River Blue encloses it.
At LRV 51 vs 7, Pigeon is decisively the brighter choice.
Pewter Green reads slightly lighter (LRV 12 vs 7), a gap that shows most in low-lit rooms.
With LRVs of 8 and 7, the two reflect almost the same amount of light.
Skimming Stone reflects far more light (LRV 68 vs 7), opening up a space where River Blue encloses it.
At LRV 41 vs 7, Dix Blue is decisively the brighter choice.
Vintage Vogue reads slightly lighter (LRV 12 vs 7), a gap that shows most in low-lit rooms.
Saybrook Sage reflects far more light (LRV 45 vs 7), opening up a space where River Blue encloses it.
At LRV 31 vs 7, Pale Green is decisively the brighter choice.