S 1502-Y vs Slow Green
Where S 1502-Y belongs to NCS's range, Slow Green is a Sherwin-Williams color. Hue-wise, S 1502-Y belongs to the greige-grey family and Slow Green to the green family. They have nearly identical light reflectance values (64 vs 64), so they'll read as similarly Light in most lighting conditions. S 1502-Y runs warm while Slow Green is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 6.2 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
S 1502-Y vs Slow Green in Real Spaces
1 real room side by side. S 1502-Y and Slow Green 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.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Slow Green reads more restrained here, while S 1502-Y adds a sense of enclosure and warmth.
Color Details
S 1502-Y vs Slow Green Simulated Comparison
5 simulated room previews — drag the slider on each to see S 1502-Y on one side and Slow 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 S 1502-Y comparisons
See how S 1502-Y stacks up against other well-photographed colors across different brands and tones.
