Charter Blue vs RAL 580-4
Where Charter Blue belongs to Behr's range, RAL 580-4 is a RAL Effect color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. RAL 580-4 (LRV 18) reflects noticeably more light than Charter Blue (LRV 15), a difference of 3 points that becomes especially apparent in rooms with limited natural light. The ΔE 6.3 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Charter Blue vs RAL 580-4 in Real Spaces
1 real room side by side. Charter Blue and RAL 580-4 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. RAL 580-4 reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Charter Blue vs RAL 580-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Charter Blue on one side and RAL 580-4 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 Charter Blue comparisons
See how Charter Blue stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 15, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 15), opening up a space where Charter Blue encloses it.
Charter Blue reads slightly lighter (LRV 15 vs 6), a gap that shows most in low-lit rooms.
At LRV 52 vs 15, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 15, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 15), opening up a space where Charter Blue encloses it.
At LRV 60 vs 15, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 15), opening up a space where Charter Blue encloses it.
Denim Drift reflects far more light (LRV 27 vs 15), opening up a space where Charter Blue encloses it.
At LRV 43 vs 15, French Gray is decisively the brighter choice.
A 10-point LRV gap (15 vs 4) makes Charter Blue the marginally brighter of the two.
Tranquil Dawn reflects far more light (LRV 55 vs 15), opening up a space where Charter Blue encloses it.
With LRVs of 15 and 13, the two reflect almost the same amount of light.
Hardwick White reflects far more light (LRV 44 vs 15), opening up a space where Charter Blue encloses it.
At LRV 84 vs 15, Pure White is decisively the brighter choice.
A 7-point LRV gap (21 vs 15) makes Artichoke the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 15), opening up a space where Charter Blue encloses it.
Shoji White reflects far more light (LRV 74 vs 15), opening up a space where Charter Blue encloses it.
Snowbound reflects far more light (LRV 83 vs 15), opening up a space where Charter Blue encloses it.
At LRV 51 vs 15, Pigeon is decisively the brighter choice.
With LRVs of 15 and 12, the two reflect almost the same amount of light.
Charter Blue reads slightly lighter (LRV 15 vs 8), a gap that shows most in low-lit rooms.
Skimming Stone reflects far more light (LRV 68 vs 15), opening up a space where Charter Blue encloses it.
At LRV 41 vs 15, Dix Blue is decisively the brighter choice.
With LRVs of 15 and 12, the two reflect almost the same amount of light.
Saybrook Sage reflects far more light (LRV 45 vs 15), opening up a space where Charter Blue encloses it.
At LRV 31 vs 15, Pale Green is decisively the brighter choice.