Sun Dust 2 vs RAL 290-4
Where Sun Dust 2 belongs to Dulux's range, RAL 290-4 is a RAL Effect color. These are both beiges, so the question isn't which hue to choose — it's where within beige to land. Sun Dust 2 (LRV 49) reflects noticeably more light than RAL 290-4 (LRV 31), a difference of 18 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 11.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Sun Dust 2 vs RAL 290-4 in Real Spaces
1 real room side by side. Seeing Sun Dust 2 and RAL 290-4 in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Sun Dust 2 will make the room feel meaningfully brighter than RAL 290-4 would.
Color Details
Sun Dust 2 vs RAL 290-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Sun Dust 2 on one side and RAL 290-4 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 Sun Dust 2 comparisons
See how Sun Dust 2 stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 49), opening up a space where Sun Dust 2 encloses it.
At LRV 83 vs 49, White Dove is decisively the brighter choice.
At LRV 49 vs 6, Sun Dust 2 is decisively the brighter choice.
With LRVs of 52 and 49, the two reflect almost the same amount of light.
Sun Dust 2 reflects far more light (LRV 49 vs 30), opening up a space where Evergreen Fog encloses it.
Their light reflectance is nearly identical (LRV 52 vs 49), so neither reads brighter in a room.
Agreeable Gray reads slightly lighter (LRV 60 vs 49), a gap that shows most in low-lit rooms.
A 9-point LRV gap (58 vs 49) makes Accessible Beige the marginally brighter of the two.
At LRV 49 vs 27, Sun Dust 2 is decisively the brighter choice.
Sun Dust 2 reads slightly lighter (LRV 49 vs 43), a gap that shows most in low-lit rooms.
Sun Dust 2 reflects far more light (LRV 49 vs 4), opening up a space where Naval encloses it.
A 6-point LRV gap (55 vs 49) makes Tranquil Dawn the marginally brighter of the two.
At LRV 49 vs 13, Sun Dust 2 is decisively the brighter choice.
A 5-point LRV gap (49 vs 44) makes Sun Dust 2 the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 49), opening up a space where Sun Dust 2 encloses it.
Sun Dust 2 reflects far more light (LRV 49 vs 21), opening up a space where Artichoke encloses it.
At LRV 66 vs 49, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 49, Shoji White is decisively the brighter choice.
At LRV 83 vs 49, Snowbound is decisively the brighter choice.
With LRVs of 51 and 49, the two reflect almost the same amount of light.
At LRV 49 vs 12, Sun Dust 2 is decisively the brighter choice.
At LRV 49 vs 8, Sun Dust 2 is decisively the brighter choice.
At LRV 68 vs 49, Skimming Stone is decisively the brighter choice.
Sun Dust 2 reads slightly lighter (LRV 49 vs 41), a gap that shows most in low-lit rooms.
At LRV 49 vs 12, Sun Dust 2 is decisively the brighter choice.
A 4-point LRV gap (49 vs 45) makes Sun Dust 2 the marginally brighter of the two.
Sun Dust 2 reflects far more light (LRV 49 vs 31), opening up a space where Pale Green encloses it.