River Blue vs Obsidian Green
River Blue is a Benjamin Moore color while Obsidian Green comes from Little Greene. River Blue reads as blue, while Obsidian Green reads as green — two distinct hue families, not close cousins. At LRV 7 vs 1, River Blue will read as the brighter of the two — a 6-point gap that matters most in north-facing or low-light rooms. The tonal difference — River Blue's blue character against Obsidian Green's green — becomes most visible against white trim or in morning light. At ΔE 21.9, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
River Blue vs Obsidian Green in Real Spaces
3 real rooms side by side. Seeing River Blue and Obsidian Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. River Blue has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
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 — River Blue gives the walls a little more lift.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — River Blue gives the walls a little more lift.
Color Details
River Blue vs Obsidian Green Simulated Comparison
5 simulated room previews — drag the slider on each to see River Blue on one side and Obsidian Green 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.
