Cook's Blue vs Secure Blue
Cook's Blue is a Farrow & Ball color while Secure Blue comes from Sherwin-Williams. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. At LRV 25 vs 22, Cook's Blue will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. They share a cool quality — useful to know if you're layering them in the same space. At ΔE 9.7, 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
Cook's Blue vs Secure Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Cook's Blue on one side and Secure Blue 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 Cook's Blue comparisons
See how Cook's Blue stacks up against other well-photographed colors across different brands and tones.
