Cobalt blue vs Millstream
Cobalt blue (RAL Classic) and Millstream (Behr) come from different manufacturers. The 55-point LRV gap — 61 for Millstream vs 6 for Cobalt blue — means Millstream will open up a space more effectively. A ΔE of 65.8 puts these firmly in different territory — two distinct design choices rather than close alternatives.
Cobalt blue vs Millstream Color Comparison
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.
Color Details
Cobalt blue vs Millstream in Real Spaces
Seeing Cobalt blue and Millstream in actual rooms makes the difference concrete. Browse the spaces below to get a feel for how each color lives on a wall. Showing 1 room type where both colors have photos.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Millstream returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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Visualization
More Cobalt blue comparisons
See how Cobalt blue stacks up against other well-photographed colors across different brands and tones.
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