Carbon Copy vs RAL 830-5
Carbon Copy is a Behr color while RAL 830-5 comes from RAL Effect. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 9 and 9, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 1.3, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Carbon Copy vs RAL 830-5 in Real Spaces
2 real rooms side by side. Carbon Copy and RAL 830-5 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.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. In photos like these you're seeing the difference at its most direct. In a finished room, the distinction is there but not dramatic.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Color Details
Carbon Copy vs RAL 830-5 Simulated Comparison
5 simulated room previews — drag the slider on each to see Carbon Copy on one side and RAL 830-5 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 Carbon Copy comparisons
See how Carbon Copy stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 9), opening up a space where Carbon Copy encloses it.
At LRV 83 vs 9, White Dove is decisively the brighter choice.
A 4-point LRV gap (9 vs 6) makes Carbon Copy the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 9), opening up a space where Carbon Copy encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 9), opening up a space where Carbon Copy encloses it.
At LRV 52 vs 9, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 9), opening up a space where Carbon Copy encloses it.
At LRV 58 vs 9, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 9, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 9), opening up a space where Carbon Copy encloses it.
Carbon Copy reads slightly lighter (LRV 9 vs 4), a gap that shows most in low-lit rooms.
At LRV 55 vs 9, Tranquil Dawn is decisively the brighter choice.
A 4-point LRV gap (13 vs 9) makes Bancha the marginally brighter of the two.
At LRV 44 vs 9, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 9), opening up a space where Carbon Copy encloses it.
Artichoke reflects far more light (LRV 21 vs 9), opening up a space where Carbon Copy encloses it.
At LRV 66 vs 9, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 9, Shoji White is decisively the brighter choice.
At LRV 83 vs 9, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 9), opening up a space where Carbon Copy encloses it.
Their light reflectance is nearly identical (LRV 12 vs 9), so neither reads brighter in a room.
Their light reflectance is nearly identical (LRV 9 vs 8), so neither reads brighter in a room.
At LRV 68 vs 9, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 9), opening up a space where Carbon Copy encloses it.
Their light reflectance is nearly identical (LRV 12 vs 9), so neither reads brighter in a room.
At LRV 45 vs 9, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 9), opening up a space where Carbon Copy encloses it.