Fly-by-Night Blue (Valspar 4009-4)
Illustrative room. Screen colors vary; test a sample before you paint.
Fly-by-Night Blue (Valspar 4009-4) is a very deep, cool blue from Valspar: LRV 7, so it reflects about 7 percent of the light that hits it.
Colors that go with Fly-by-Night Blue
Three Valspar colors picked for Fly-by-Night Blue by this site's color math: a trim white, a quiet contrast from another family, a dark accent. Valspar did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Fly-by-Night Blue, 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 | Sea Serpent | SW 7615 | 7 | 2.1 | very close |
| Benjamin Moore | Blue Note | 2129-30 | 9 | 2.0 | very close |
| Behr | Night Tide | ECC-30-3 | 8.3 | 1.5 | very close |
| PPG Paints | Cavalry | 1041-7 | 7 | 1.7 | very close |
Lighter and darker in Valspar
The Valspar blue colors nearest to Fly-by-Night Blue (LRV 7) by LRV.
Lighter than Fly-by-Night Blue
Color data
| Brand | Valspar |
|---|---|
| Color code | 4009-4 |
| Hex | #414F5B |
| RGB | 65, 79, 91 |
| HSL | 208°, 17%, 31% |
| LRV (light reflectance value) | 7 |
| Lab L*, a*, b* | 32.9, -2.4, -8.8 |
| Undertone | Cool |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Fly-by-Night Blue (Valspar 4009-4), published as #414F5B
#2F4759
#52585B
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Valspar
More from Valspar
Common questions
- What is the LRV of Fly-by-Night Blue (Valspar 4009-4)?
- Fly-by-Night Blue has an LRV of 7. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Fly-by-Night Blue is a very deep color.
- What is the closest match to Fly-by-Night Blue in another brand?
- Night Tide (Behr ECC-30-3) from Behr, at a deltaE of 1.5 (very close).
- Is Fly-by-Night Blue warm or cool?
- Valspar lists Fly-by-Night Blue as cool, with a Cool undertone. Its Lab b* value is -8.8; 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.