Bell Heather vs RAL 540-4
Where Bell Heather belongs to PPG's range, RAL 540-4 is a RAL Effect color. Bell Heather reads as purple, while RAL 540-4 reads as pink-purple — two distinct hue families, not close cousins. Bell Heather (LRV 25) reflects noticeably more light than RAL 540-4 (LRV 21), a difference of 4 points that becomes especially apparent in rooms with limited natural light. The ΔE 9.4 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Bell Heather vs RAL 540-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Bell Heather on one side and RAL 540-4 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 Bell Heather comparisons
See how Bell Heather stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 25), opening up a space where Bell Heather encloses it.
At LRV 83 vs 25, White Dove is decisively the brighter choice.
At LRV 25 vs 6, Bell Heather is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 25), opening up a space where Bell Heather encloses it.
Evergreen Fog reads slightly lighter (LRV 30 vs 25), a gap that shows most in low-lit rooms.
At LRV 52 vs 25, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 25), opening up a space where Bell Heather encloses it.
At LRV 58 vs 25, Accessible Beige is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 27 vs 25), so neither reads brighter in a room.
French Gray reflects far more light (LRV 43 vs 25), opening up a space where Bell Heather encloses it.
Bell Heather reflects far more light (LRV 25 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 25, Tranquil Dawn is decisively the brighter choice.
A 12-point LRV gap (25 vs 13) makes Bell Heather the marginally brighter of the two.
At LRV 44 vs 25, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 25), opening up a space where Bell Heather encloses it.
Bell Heather reads slightly lighter (LRV 25 vs 21), a gap that shows most in low-lit rooms.
At LRV 66 vs 25, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 25, Shoji White is decisively the brighter choice.
At LRV 83 vs 25, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 25), opening up a space where Bell Heather encloses it.
At LRV 25 vs 12, Bell Heather is decisively the brighter choice.
At LRV 25 vs 8, Bell Heather is decisively the brighter choice.
At LRV 68 vs 25, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 25), opening up a space where Bell Heather encloses it.
At LRV 25 vs 12, Bell Heather is decisively the brighter choice.
At LRV 45 vs 25, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 25), a gap that shows most in low-lit rooms.