Color spec
| Brand | Glidden |
| Name | Planetarium |
| SKU | PPG1242-6 |
| Hex | #1C70AD |
| RGB | 28, 112, 173 |
| HSL | 205°, 72%, 39% |
| LRV | 15 |
| Undertone | blue / cool |
| Family | Blue |
About Glidden Planetarium
With an LRV of 15, Planetarium is a deep, dramatic shade. It soaks up light in north-facing rooms and looks richest where strong daylight hits it. Its blue undertone is the part to watch: it gets picked up by whatever sits next to it, so test it against your trim, floor and the room's main light before committing. Warm artificial light softens it; cool LED can make it look flat, so match your bulbs to the mood you want.
Planetarium works best as a feature — a single wall, built-ins, a study or dining room — rather than wrapping a whole bright space. Blues calm a room, which makes them popular in bedrooms, bathrooms and home offices.
Closest matches at every US brand
20 brands · top 5 each5 closest matches per brand by ΔE2000, computed against each brand's full deck. Tap any swatch for its full single-color spec; tap the brand title to browse all blue from that brand.
Sherwin-Williams
Behr
Benjamin Moore
Valspar
PPG / Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Dunn-Edwards
Magnolia Home
Farrow & Ball
Diamond Vogel
Hirshfield's
Rodda
C2 Paint
Clare
Portola Paints
Annie Sloan
Backdrop
Rust-Oleum
Kompozit
Similar Glidden colors
closest in the Glidden deckThe nearest shades to Planetarium within Glidden's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
Coordinated palette
Generated by hue-rotating #1C70AD in HSL space. Pair Planetarium with one accent and one neutral — the swatches below are starting points, not final picks.
Accessibility (WCAG contrast)
WCAG 2.1: AA = 4.5:1 normal text · AA Large = 3:1 large text · AAA = 7:1 normal text.
Glidden Planetarium Equivalents at Other Brands
Matching Planetarium from a different paint counter? Below is the single closest color in each major US deck and how close it really is. Remember that any paint store can also custom-tint Glidden PPG1242-6 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Planetarium
Sherwin-Williams's nearest match is Blue Chip (SW 6959), visually identical in normal room light (ΔE 1.98). It runs slightly darker (LRV 13 vs 15) and carries a cool blue undertone, so it substitutes for Planetarium without repainting risk. See the full Blue Chip swatch →
Behr Equivalent of Planetarium
At Behr, the closest color to Planetarium is Electric Blue (MQ4-24) — very close at ΔE 2.96, though not an exact twin. It sits at the same lightness (LRV 14 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Electric Blue swatch →
Benjamin Moore Equivalent of Planetarium
At Benjamin Moore, the closest color to Planetarium is Paddington Blue (791) — very close at ΔE 2.55, though not an exact twin. It runs slightly darker (LRV 13 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Paddington Blue swatch →
Valspar Equivalent of Planetarium
At Valspar, the closest color to Planetarium is Cosmic Blue (4008-10C) — very close at ΔE 3.36, though not an exact twin. It sits at the same lightness (LRV 15.6 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Cosmic Blue swatch →
PPG / Glidden Equivalent of Planetarium
The closest PPG / Glidden equivalent of Planetarium is Planetarium (PPG1242-6). At ΔE 0.43 the two are indistinguishable on a wall — it carries the same cool blue undertone and sits at the same lightness (LRV 15 vs 15). If PPG / Glidden is your counter, order Planetarium and you'll get the same color. See the full Planetarium swatch →
Dutch Boy Equivalent of Planetarium
At Dutch Boy, the closest color to Planetarium is Lovely Lapis (140-6DB) — very close at ΔE 2.19, though not an exact twin. It sits at the same lightness (LRV 14 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Lovely Lapis swatch →
HGTV Home by Sherwin-Williams Equivalent of Planetarium
HGTV Home by Sherwin-Williams has no exact twin of Planetarium. The nearest is Blue Clematis (HGSW 1372) at ΔE 4.9 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 16 vs 15). Compare large swatches before substituting. See the full Blue Clematis swatch →
Dunn-Edwards Equivalent of Planetarium
At Dunn-Edwards, the closest color to Planetarium is Beautiful Blue (DEA136) — very close at ΔE 2.09, though not an exact twin. It sits at the same lightness (LRV 14 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Beautiful Blue swatch →
Magnolia Home Equivalent of Planetarium
Magnolia Home doesn't make a true equivalent of Planetarium — the nearest deck color, Blue Skies (JG-85), is clearly different (ΔE 12.49). For an exact match, any Magnolia Home retailer can custom-tint Glidden PPG1242-6 instead. See the full Blue Skies swatch →
Farrow & Ball Equivalent of Planetarium
Farrow & Ball doesn't make a true equivalent of Planetarium — the nearest deck color, Pitch Blue (NO. 220), is clearly different (ΔE 13.44). For an exact match, any Farrow & Ball retailer can custom-tint Glidden PPG1242-6 instead. See the full Pitch Blue swatch →
Diamond Vogel Equivalent of Planetarium
Diamond Vogel doesn't make a true equivalent of Planetarium — the nearest deck color, Big Ocean Wave (H056), is clearly different (ΔE 6.44). For an exact match, any Diamond Vogel retailer can custom-tint Glidden PPG1242-6 instead. See the full Big Ocean Wave swatch →
Hirshfield's Equivalent of Planetarium
Hirshfield's's nearest match is Bowen Blue (H0059), visually identical in normal room light (ΔE 1.35). It runs slightly darker (LRV 13 vs 15) and carries a cool blue undertone, so it substitutes for Planetarium without repainting risk. See the full Bowen Blue swatch →
Rodda Equivalent of Planetarium
Rodda doesn't make a true equivalent of Planetarium — the nearest deck color, Evening Tide (R088), is clearly different (ΔE 10.9). For an exact match, any Rodda retailer can custom-tint Glidden PPG1242-6 instead. See the full Evening Tide swatch →
C2 Paint Equivalent of Planetarium
C2 Paint doesn't make a true equivalent of Planetarium — the nearest deck color, Windsor (C2-762), is clearly different (ΔE 7.33). For an exact match, any C2 Paint retailer can custom-tint Glidden PPG1242-6 instead. See the full Windsor swatch →
Clare Equivalent of Planetarium
Clare doesn't make a true equivalent of Planetarium — the nearest deck color, Hyperlink (PNT100-MD-41), is clearly different (ΔE 5.58). For an exact match, any Clare retailer can custom-tint Glidden PPG1242-6 instead. See the full Hyperlink swatch →
Portola Paints Equivalent of Planetarium
Portola Paints doesn't make a true equivalent of Planetarium — the nearest deck color, Cobalt (COBALT), is clearly different (ΔE 12.35). For an exact match, any Portola Paints retailer can custom-tint Glidden PPG1242-6 instead. See the full Cobalt swatch →
Annie Sloan Equivalent of Planetarium
Annie Sloan doesn't make a true equivalent of Planetarium — the nearest deck color, Giverny (GIVERNY), is clearly different (ΔE 14.1). For an exact match, any Annie Sloan retailer can custom-tint Glidden PPG1242-6 instead. See the full Giverny swatch →
Backdrop Equivalent of Planetarium
Backdrop doesn't make a true equivalent of Planetarium — the nearest deck color, Mom Jeans (BD-MJ), is clearly different (ΔE 11.37). For an exact match, any Backdrop retailer can custom-tint Glidden PPG1242-6 instead. See the full Mom Jeans swatch →
Rust-Oleum Equivalent of Planetarium
Rust-Oleum doesn't make a true equivalent of Planetarium — the nearest deck color, Coastal Blue (329207), is clearly different (ΔE 8.05). For an exact match, any Rust-Oleum retailer can custom-tint Glidden PPG1242-6 instead. See the full Coastal Blue swatch →
Kompozit Equivalent of Planetarium
Kompozit has no exact twin of Planetarium. The nearest is Skylla (0640) at ΔE 4.83 — close, but the difference shows next to trim and in side light. It runs slightly lighter (LRV 19 vs 15). Compare large swatches before substituting. See the full Skylla swatch →