Blue green vs Ruby red paint color comparison

Blue green vs Ruby red

Blue greenRAL ClassicvsRuby redRAL ClassicΔE 70.1 — Very different colors

Blue green and Ruby red come from the same RAL Classic collection. Blue green reads as blue-green, while Ruby red reads as pink-red — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 8 vs 9 — so neither will read significantly brighter or darker than the other. A ΔE of 70.1 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Blue green vs Ruby red in Real Spaces

3 real rooms side by side. Seeing Blue green and Ruby red in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.

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. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.

Blue greenRAL Classic 6004 house exterior paint

@aa.koti

Ruby redRAL Classic Ruby red garage door review

@a_s_doors_ltd

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. The distinction reads clearly at room scale, making the choice between them concrete.

Blue greenRAL Classic Blue green front door photo

@pittner_fenster_und_tueren

Ruby redRAL Classic Ruby red front door paint

@a_s_doors_ltd

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. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.

Blue greenRAL Classic 6004 kitchen cabinets review

@malowanie_mebli

Ruby redRAL Classic 3003 kitchen cabinets review

@artiora.ru

Color Details

Blue green
RAL Classic · RAL 6004
LRV7.7
BrandRAL Classic
NumberRAL 6004
Undertone—
Temperature—
BrightnessDark
Ruby red
RAL Classic · RAL 3003
LRV8.8
BrandRAL Classic
NumberRAL 3003
Undertone—
Temperature—
BrightnessDark

Blue green vs Ruby red Simulated Comparison

5 simulated room previews — drag the slider on each to see Blue green on one side and Ruby red on the other.

Bathroom
Bedroom
House
Kitchen Cabinets
Living Room

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.