S 3005-Y20R vs Mega Greige
S 3005-Y20R (NCS) and Mega Greige (Sherwin-Williams) come from different manufacturers. S 3005-Y20R reads as beige-greige, while Mega Greige reads as greige-grey — two distinct hue families, not close cousins. The 4-point LRV gap — 41 for S 3005-Y20R vs 37 for Mega Greige — means S 3005-Y20R will open up a space more effectively. Both share a warm character, which means they'll respond to light and surrounding materials in similar ways. ΔE 3.5 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
S 3005-Y20R vs Mega Greige in Real Spaces
1 real room side by side. S 3005-Y20R and Mega Greige 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.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. S 3005-Y20R reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
S 3005-Y20R vs Mega Greige Simulated Comparison
5 simulated room previews — drag the slider on each to see S 3005-Y20R on one side and Mega Greige 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 S 3005-Y20R comparisons
See how S 3005-Y20R stacks up against other well-photographed colors across different brands and tones.










































