St. John Blue vs James
St. John Blue is a Benjamin Moore color while James comes from Little Greene. St. John Blue reads as blue, while James reads as blue-grey — two distinct hue families, not close cousins. At LRV 34 vs 30, St. John Blue will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. They share a blue quality — useful to know if you're layering them in the same space. At ΔE 6.4, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
St. John Blue vs James Simulated Comparison
5 simulated room previews — drag the slider on each to see St. John Blue on one side and James 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 St. John Blue comparisons
See how St. John Blue stacks up against other well-photographed colors across different brands and tones.








































