Astronomical (Behr N450-7)

Astronomical Behr N450-7#474B4A, LRV 6.9 (estimated)
Living room with walls painted Behr Astronomical N450-7 (simulated)
Living room, walls in Astronomical

Illustrative room. Screen colors vary; test a sample before you paint.

Astronomical (Behr N450-7) is a very deep, neutral gray from Behr: LRV 6.9, so it reflects about 7 percent of the light that hits it.

Colors that go with Astronomical

Three Behr colors picked for Astronomical by this site's color math: a trim white, 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 Astronomical, 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.

BrandClosest colorCodeLRVdeltaEHow close
Sherwin-WilliamsRock BottomSW 706271.3very close
Benjamin MooreNightfall15968.31.5very close
ValsparForest Canopy5010-171.7very close
PPG PaintsWitchcraft1037-773.1noticeably different

Lighter and darker in Behr

Color data

BrandBehr
Color codeN450-7
Hex#474B4A
RGB71, 75, 74
HSL165°, 3%, 29%
LRV (light reflectance value)6.9 (estimated from the hex)
Lab L*, a*, b*31.5, -1.8, 0.0
UndertoneNeutral
Temperatureneutral
Color familyGray

Same paint, two kinds of light

Astronomical (Behr N450-7), published as #474B4A

North light (cool, indirect)
#384348
South light (warm, direct)
#56544A

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 Astronomical (Behr N450-7)?
Astronomical has an LRV of 6.9 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Astronomical is a very deep color.
What is the closest match to Astronomical in another brand?
Rock Bottom (SW 7062) from Sherwin-Williams, at a deltaE of 1.3 (very close).
Is Astronomical warm or cool?
Behr lists Astronomical as neutral, with a Neutral undertone. Its Lab b* value is 0.0; 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.

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