Undersea vs Whale Gray
Both are Behr colors. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. At LRV 13 vs 9, Whale Gray will read as the brighter of the two — a 4-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 NaN, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Undersea vs Whale Gray in Real Spaces
1 real room side by side. Seeing Undersea and Whale Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The brightness difference is modest but present — Whale Gray gives the walls a little more lift.
Color Details
Undersea vs Whale Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Undersea on one side and Whale Gray 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 Undersea comparisons
See how Undersea stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 9, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 9), opening up a space where Undersea encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 9), opening up a space where Undersea encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 9), opening up a space where Undersea encloses it.
At LRV 58 vs 9, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 9, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 9), opening up a space where Undersea encloses it.
At LRV 55 vs 9, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 9, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 9), opening up a space where Undersea encloses it.
At LRV 66 vs 9, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 9, Shoji White is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 12 vs 9), so neither reads brighter in a room.
At LRV 68 vs 9, Skimming Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 12 vs 9), so neither reads brighter in a room.
At LRV 45 vs 9, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 9), opening up a space where Undersea encloses it.
With LRVs of 9 and 7, the two reflect almost the same amount of light.
Cement grey reflects far more light (LRV 24 vs 9), opening up a space where Undersea encloses it.
Guilford Green reflects far more light (LRV 57 vs 9), opening up a space where Undersea encloses it.