Perfect Periwinkle (SW 9065)
Illustrative room. Screen colors vary; test a sample before you paint.
Perfect Periwinkle (SW 9065) is a deep, cool blue from Sherwin-Williams: LRV 23, so it reflects about 23 percent of the light that hits it.
Colors that go with Perfect Periwinkle
Four Sherwin-Williams colors picked for Perfect Periwinkle by this site's color math: a trim white, a deeper blue, a quiet contrast from another family, a dark accent. Sherwin-Williams did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Perfect Periwinkle, ranked by CIEDE2000 (deltaE): under 1.0 is indistinguishable, 1.0 to 2.3 very close, 2.3 to 5 noticeably different, over 5 clearly different.
| Brand | Closest color | Code | LRV | deltaE | How close |
|---|---|---|---|---|---|
| Benjamin Moore | Blue Dragon | 810 | 27.6 | 2.2 | very close |
| Behr | Castle Moat | 580B-6 | 23.9 | 1.0 | very close |
| Valspar | Wellspring | 4007-8B | 22 | 1.3 | very close |
| PPG Paints | Shrinking Violet | 1162-5 | 22 | 1.5 | very close |
Lighter and darker in Sherwin-Williams
The Sherwin-Williams blue colors nearest to Perfect Periwinkle (LRV 23) by LRV.
Lighter than Perfect Periwinkle
Darker than Perfect Periwinkle
Color data
| Brand | Sherwin-Williams |
|---|---|
| Color code | SW 9065 |
| Hex | #6487B0 |
| RGB | 100, 135, 176 |
| HSL | 212°, 32%, 54% |
| LRV (light reflectance value) | 23 |
| Lab L*, a*, b* | 55.3, -1.3, -25.5 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Perfect Periwinkle (SW 9065), published as #6487B0
#4D7EAE
#7A90B0
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Sherwin-Williams
More from Sherwin-Williams
Common questions
- What is the LRV of Perfect Periwinkle (SW 9065)?
- Perfect Periwinkle has an LRV of 23. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Perfect Periwinkle is a deep color.
- What is the closest match to Perfect Periwinkle in another brand?
- Castle Moat (Behr 580B-6) from Behr, at a deltaE of 1.0 (very close).
- Is Perfect Periwinkle warm or cool?
- Sherwin-Williams lists Perfect Periwinkle as cool, with a Cool Blue undertone. Its Lab b* value is -25.5; a higher b* is warmer and yellower, a lower one cooler and bluer.
Sources: LRV and hex as published by the manufacturer, via PaintDB (CC BY 4.0). Color differences are CIEDE2000 values computed by this site from the hex values (data snapshot 2026-10-01). Color names and codes belong to their manufacturers.