ComparisonComparisonSherwin-Williams SW 6528 and Vista Paint 0645, ΔE 4.02 apart
Sherwin-Williams Cosmos (SW 6528) and Vista Paint Calm Tint (0645) measure a delta-E of 4.02 apart. Calm Tint is 5.1 LRV points lighter, which is the difference you notice first. Calm Tint holds more color, chroma 18.2 against 16.2, so it grays out less in dim light. These read as related but distinct. Sample both before committing. If you need the Cosmos depth in Vista Paint's line, start from its LRV of 37.9 rather than matching by name.
Sherwin-Williams Cosmos and Vista Paint Calm Tint are delta-E 4.02 apart - a difference that shows up on a wall, not just side by side on two chips.
The measured color distance between Sherwin-Williams Cosmos and Vista Paint Calm Tint is delta-E 4.02.
Vista Paint Calm Tint is lighter than Sherwin-Williams Cosmos by 5.1 points of light reflectance (LRV).
| Cosmos | Calm Tint | |
|---|---|---|
| Brand | Sherwin-Williams | Vista Paint |
| Code | SW 6528 | 0645 |
| Hex | #8EA9C2 | #91B3CE |
| Light reflectance | 37.9 | 43.0 |
| Undertone | blue | blue |
| Chroma | 16.2 | 18.2 |
| Hue angle | 257.3° | 253.3° |
| Color family | blue | teal |