Slate Mine vs RAL 180-1
Where Slate Mine belongs to PPG's range, RAL 180-1 is a RAL Effect color. RAL 180-1 (LRV 49) reflects noticeably more light than Slate Mine (LRV 16), a difference of 33 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 29.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question.
Slate Mine vs RAL 180-1 Color Comparison
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.
Color Details
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