ComparisonComparisonFarrow & Ball 237 and Vista Paint 0645, ΔE 14.38 apart
Farrow & Ball Cook's Blue (237) and Vista Paint Calm Tint (0645) measure a delta-E of 14.38 apart. Calm Tint is 17.1 LRV points lighter, which is the difference you notice first. Cook's Blue holds more color, chroma 22.7 against 18.2, 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 Calm Tint are delta-E 14.38 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 Calm Tint is delta-E 14.38.
Vista Paint Calm Tint is lighter than Farrow & Ball Cook's Blue by 17.1 points of light reflectance (LRV).
Farrow & Ball Cook's Blue carries more color than Vista Paint Calm Tint - a higher chroma value means a more intense, less grey color.
| Cook's Blue | Calm Tint | |
|---|---|---|
| Brand | Farrow & Ball | Vista Paint |
| Code | 237 | 0645 |
| Hex | #6A8FB2 | #91B3CE |
| Light reflectance | 25.9 | 43.0 |
| Undertone | blue | blue |
| Chroma | 22.7 | 18.2 |
| Hue angle | 260.7° | 253.3° |
| Color family | blue | teal |