Northern Sky Blue (Valspar 4008-5B)
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Northern Sky Blue (Valspar 4008-5B) is a medium, cool blue from Valspar: LRV 53, so it reflects about 53 percent of the light that hits it.
Colors that go with Northern Sky Blue
Four Valspar colors picked for Northern Sky Blue by this site's color math: a trim white, a deeper blue, 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 Northern Sky 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 | Vast Sky | SW 6506 | 55 | 1.7 | very close |
| Benjamin Moore | Greenhow Blue | CW-655 | 55.5 | 0.7 | indistinguishable |
| Behr | Viking | 550E-3 | 51.7 | 1.1 | very close |
| PPG Paints | Twinkle | 1154-4 | 54 | 0.7 | indistinguishable |
Lighter and darker in Valspar
The Valspar blue colors nearest to Northern Sky Blue (LRV 53) by LRV.
Lighter than Northern Sky Blue
Darker than Northern Sky Blue
Color data
| Brand | Valspar |
|---|---|
| Color code | 4008-5B |
| Hex | #AAC5D3 |
| RGB | 170, 197, 211 |
| HSL | 200°, 32%, 75% |
| LRV (light reflectance value) | 53 |
| Lab L*, a*, b* | 78.0, -6.1, -10.0 |
| Undertone | Cool Blue |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Northern Sky Blue (Valspar 4008-5B), published as #AAC5D3
#97BBD1
#BECFD3
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 Northern Sky Blue (Valspar 4008-5B)?
- Northern Sky Blue has an LRV of 53. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Northern Sky Blue is a medium color.
- What is the closest match to Northern Sky Blue in another brand?
- Greenhow Blue (BM CW-655) from Benjamin Moore, at a deltaE of 0.7 (indistinguishable).
- Is Northern Sky Blue warm or cool?
- Valspar lists Northern Sky Blue as cool, with a Cool Blue undertone. Its Lab b* value is -10.0; 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.