Granite Boulder vs S 3005-G50Y
Granite Boulder (Behr) and S 3005-G50Y (NCS) come from different manufacturers. Hue-wise, Granite Boulder belongs to the greige-grey family and S 3005-G50Y to the grey family. Their light reflectance values are nearly the same — 42 vs 41 — so neither will read significantly brighter or darker than the other. Where Granite Boulder leans yellow, S 3005-G50Y reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 2.3 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Granite Boulder vs S 3005-G50Y in Real Spaces
1 real room side by side. Granite Boulder and S 3005-G50Y 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.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. S 3005-G50Y reads more restrained here, while Granite Boulder adds a sense of enclosure and warmth.
Color Details
Granite Boulder vs S 3005-G50Y Simulated Comparison
5 simulated room previews — drag the slider on each to see Granite Boulder on one side and S 3005-G50Y 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 Granite Boulder comparisons
See how Granite Boulder stacks up against other well-photographed colors across different brands and tones.









































