Ruby red vs Cement grey
Both from RAL Classic's palette. Cement grey (LRV 24) reflects noticeably more light than Ruby red (LRV 9), a difference of 15 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 57.2, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question.
Ruby red vs Cement grey 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
Ruby red vs Cement grey in Real Spaces
Seeing Ruby red and Cement grey in actual rooms makes the difference concrete. Browse the spaces below to get a feel for how each color lives on a wall. Showing 3 room types where both colors have photos.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Cement grey reflects noticeably more light off the walls, making the space read more open than Ruby red.
@a_s_doors_ltd
@puntoporta
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Cement grey will make the room feel meaningfully brighter than Ruby red would.
@a_s_doors_ltd
@drzwi_zbydrew
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Cement grey reflects noticeably more light off the walls, making the space read more open than Ruby red.
@artiora.ru
@kasia.kopacz
More Ruby red comparisons
See how Ruby red stacks up against other well-photographed colors across different brands and tones.

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