Light blue vs Grey Blue
Light blue and Grey Blue come from the same RAL Classic collection. The 16-point LRV gap — 23 for Light blue vs 7 for Grey Blue — means Light blue will open up a space more effectively. A ΔE of 36.2 puts these firmly in different territory — two distinct design choices rather than close alternatives.
Light blue vs Grey Blue 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
Light blue vs Grey Blue in Real Spaces
Seeing Light blue and Grey Blue 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
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Light blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
@colour.coats_ne
@bungalow_in_brokdorf
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Light blue reflects noticeably more light off the walls, making the space read more open than Grey Blue.
@entrekrosno
@waclawik_okna
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Light blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
@atelie.mebelye
@ilo.nove_homestory
More Light blue comparisons
See how Light blue stacks up against other well-photographed colors across different brands and tones.

Light vs dark contrast
RAL Classic vs Benjamin Moore

Light vs dark contrast
RAL Classic vs Farrow & Ball

Light blue reads lighter
RAL Classic vs Sherwin-Williams

Light vs dark contrast
RAL Classic vs Farrow & Ball

RAL Classic vs Sherwin-Williams
RAL Classic vs Sherwin-Williams

Light vs dark contrast
RAL Classic vs Farrow & Ball

Light vs dark contrast
RAL Classic vs Sherwin-Williams

RAL Classic vs Dulux
RAL Classic vs Dulux

Light vs dark contrast
RAL Classic vs Dulux

Light vs dark contrast
RAL Classic vs Benjamin Moore

Light blue reads lighter
RAL Classic vs Benjamin Moore

Pale Green reads lighter
RAL Classic

Light blue reads lighter
RAL Classic vs Dulux

Two RAL Classic colors
RAL Classic

Light blue reads lighter
RAL Classic

Light vs dark contrast
RAL Classic vs Jotun

RAL Classic vs Little Greene
RAL Classic vs Little Greene

Senses reads lighter
RAL Classic vs Jotun

Light vs dark contrast
RAL Classic vs Little Greene

Light vs dark contrast
RAL Classic vs Jotun

RAL Classic vs Little Greene
RAL Classic vs Little Greene

Light blue reads lighter
RAL Classic vs Behr

Light vs dark contrast
RAL Classic vs Behr

RAL Classic vs Behr
RAL Classic vs Behr

Light vs dark contrast
RAL Classic vs RAL Effect

Light vs dark contrast
RAL Classic vs RAL Effect

Light vs dark contrast
RAL Classic vs RAL Effect

Light blue reads lighter
RAL Classic vs NCS

Light vs dark contrast
RAL Classic vs NCS

Light vs dark contrast
RAL Classic vs NCS















