Nostalgic (Behr UL240-2)
Illustrative room. Screen colors vary; test a sample before you paint.
Nostalgic (Behr UL240-2) is a very deep, cool blue from Behr: LRV 15.1, so it reflects about 15 percent of the light that hits it.
Colors that go with Nostalgic
Four Behr colors picked for Nostalgic by this site's color math: a trim white, a deeper blue, a quiet contrast from another family, a dark accent. Behr did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Nostalgic, 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 |
|---|---|---|---|---|---|
| Sherwin-Williams | Mesmerize | SW 6544 | 13 | 3.2 | noticeably different |
| Benjamin Moore | Amethyst Shadow | 1441 | 18.3 | 2.6 | noticeably different |
| Valspar | Dark Night | 4003-4C | 13 | 2.9 | noticeably different |
| PPG Paints | Alley Cat | 1043-6 | 14 | 3.0 | noticeably different |
Lighter and darker in Behr
The Behr blue colors nearest to Nostalgic (LRV 15.1 (estimated)) by LRV.
Lighter than Nostalgic
Darker than Nostalgic
Color data
| Brand | Behr |
|---|---|
| Color code | UL240-2 |
| Hex | #666C7E |
| RGB | 102, 108, 126 |
| HSL | 225°, 11%, 45% |
| LRV (light reflectance value) | 15.1 (estimated from the hex) |
| Lab L*, a*, b* | 45.7, 1.8, -10.7 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Nostalgic (Behr UL240-2), published as #666C7E
#55637C
#77757E
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Behr
More from Behr
Common questions
- What is the LRV of Nostalgic (Behr UL240-2)?
- Nostalgic has an LRV of 15.1 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Nostalgic is a very deep color.
- What is the closest match to Nostalgic in another brand?
- Amethyst Shadow (BM 1441) from Benjamin Moore, at a deltaE of 2.6 (noticeably different).
- Is Nostalgic warm or cool?
- Behr lists Nostalgic as cool, with a Cool Blue undertone. Its Lab b* value is -10.7; a higher b* is warmer and yellower, a lower one cooler and bluer.
Sources: hex as published by the manufacturer, via PaintDB (CC BY 4.0); LRV is not published by Behr for this color and is estimated here from the color's own hex value. 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.