Farrow & Ball 237 and Vista Paint 0597, ΔE 6.9 apart
Farrow & Ball Cook's Blue (237) and Vista Paint Himalaya Sky (0597) measure a delta-E of 6.9 apart. Himalaya Sky is 5.1 LRV points lighter, which is the difference you notice first. Himalaya Sky holds more color, chroma 25.4 against 22.7, so it grays out less in dim light. These read as related but distinct. Sample both before committing. If you need the Cook's Blue depth in Vista Paint's line, start from its LRV of 25.9 rather than matching by name.
Farrow & Ball Cook's Blue and Vista Paint Himalaya Sky are delta-E 6.9 apart - a difference that shows up on a wall, not just side by side on two chips.
The measured color distance between Farrow & Ball Cook's Blue and Vista Paint Himalaya Sky is delta-E 6.9.
Vista Paint Himalaya Sky is lighter than Farrow & Ball Cook's Blue by 5.1 points of light reflectance (LRV).
| Cook's Blue | Himalaya Sky | |
|---|---|---|
| Brand | Farrow & Ball | Vista Paint |
| Code | 237 | 0597 |
| Hex | #6A8FB2 | #7C98C3 |
| Light reflectance | 25.9 | 31.0 |
| Undertone | blue | blue |
| Chroma | 22.7 | 25.4 |
| Hue angle | 260.7° | 272.0° |
| Color family | blue | blue |