Sudbury Yellow vs RAL 320-1
Sudbury Yellow is a Farrow & Ball color while RAL 320-1 comes from RAL Effect. Hue-wise, Sudbury Yellow belongs to the beige-yellow family and RAL 320-1 to the beige family. At LRV 49 vs 43, Sudbury Yellow will read as the brighter of the two — a 7-point gap that matters most in north-facing or low-light rooms. At ΔE 6.4, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Sudbury Yellow vs RAL 320-1 in Real Spaces
4 real rooms side by side. Sudbury Yellow and RAL 320-1 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. Sudbury Yellow has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The brightness difference is modest but present — Sudbury Yellow gives the walls a little more lift.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The brightness difference is modest but present — Sudbury Yellow gives the walls a little more lift.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Sudbury Yellow gives the walls a little more lift.
Color Details
Sudbury Yellow vs RAL 320-1 Simulated Comparison
5 simulated room previews — drag the slider on each to see Sudbury Yellow on one side and RAL 320-1 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 Sudbury Yellow comparisons
See how Sudbury Yellow stacks up against other well-photographed colors across different brands and tones.
