Great Joy vs Cement grey
Where Great Joy belongs to PPG's range, Cement grey is a RAL Classic color. Great Joy reads as green, while Cement grey reads as grey — two distinct hue families, not close cousins. Great Joy (LRV 74) reflects noticeably more light than Cement grey (LRV 24), a difference of 50 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 36.6, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Great Joy vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Great Joy on one side and Cement grey 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 Great Joy comparisons
See how Great Joy stacks up against other well-photographed colors across different brands and tones.
