Farrow & Ball 27 and Vista Paint 0617, ΔE 15.61 apart
Farrow & Ball Parma Gray (27) and Vista Paint John's Blue (0617) measure a delta-E of 15.61 apart. Parma Gray is 14.1 LRV points lighter, which is the difference you notice first. John's Blue holds more color, chroma 18 against 6.5, so it grays out less in dim light. The undertones part company: Parma Gray reads as a cool blue-gray at hue angle 240.6 degrees, John's Blue as a blue at 259.0. These read as related but distinct. Sample both before committing. If you need the John's Blue depth in Farrow & Ball's line, start from its LRV of 36.0 rather than matching by name.
Farrow & Ball Parma Gray and Vista Paint John's Blue are delta-E 15.61 apart - a difference that shows up on a wall, not just side by side on two chips.
The measured color distance between Farrow & Ball Parma Gray and Vista Paint John's Blue is delta-E 15.61.
Farrow & Ball Parma Gray is lighter than Vista Paint John's Blue by 14.1 points of light reflectance (LRV).
Vista Paint John's Blue carries more color than Farrow & Ball Parma Gray - a higher chroma value means a more intense, less grey color.
| Parma Gray | John's Blue | |
|---|---|---|
| Brand | Farrow & Ball | Vista Paint |
| Code | 27 | 0617 |
| Hex | #B0BEC6 | #87A4C0 |
| Light reflectance | 50.1 | 36.0 |
| Undertone | cool blue-gray | blue |
| Chroma | 6.5 | 18.0 |
| Hue angle | 240.6° | 259.0° |
| Color family | gray | blue |