Color spec
| Brand | PPG / Glidden |
| Name | Planetarium |
| SKU | PPG1242-6 |
| Hex | #1C71AD |
| RGB | 28, 113, 173 |
| HSL | 205°, 72%, 39% |
| LRV | 15 |
| Undertone | cool blue tone |
| Family | Blue |
About PPG / 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 by brand
10 brands within ΔE 5The closest matches per brand by ΔE2000, computed against each brand's full deck. Only colors within ΔE 5 (close enough to substitute on a wall) are shown — brands with no real match are left off. 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
Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Dunn-Edwards
Hirshfield's
Kompozit
Similar PPG / Glidden colors
closest in the PPG / Glidden deckThe nearest shades to Planetarium within PPG / 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 #1C71AD 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.
PPG / 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 PPG / 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 1.95). 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 3.33, 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 Blue Macaw (784) — very close at ΔE 2.79, though not an exact twin. It sits at the same lightness (LRV 16 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Blue Macaw swatch →
Valspar Equivalent of Planetarium
At Valspar, the closest color to Planetarium is Cosmic Blue (4008-10C) — very close at ΔE 2.94, 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 →
Glidden Equivalent of Planetarium
The closest 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 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 2.4, 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 4.54 — 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 Americana (DE5845) — very close at ΔE 2.6, though not an exact twin. It sits at the same lightness (LRV 16 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Americana swatch →
Hirshfield's Equivalent of Planetarium
Hirshfield's's nearest match is Bowen Blue (H0059), visually identical in normal room light (ΔE 1.57). 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 →
Kompozit Equivalent of Planetarium
Kompozit has no exact twin of Planetarium. The nearest is Skylla (0640) at ΔE 4.55 — 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 →