Color spec
| Brand | Behr |
| Name | Constellation Blue |
| SKU | T18-18 |
| Hex | #3C4670 |
| RGB | 60, 70, 112 |
| HSL | 228°, 30%, 34% |
| LRV | 7 |
| Undertone | cool blue tone |
| Family | Blue |
About Behr Constellation Blue
At LRV 7, Constellation Blue is about as dark as paint gets — it reads near-black on a wall and reveals its character only in direct daylight or under warm bulbs. 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. In rooms with little natural light it can feel heavy, so reserve it for spaces you want to feel enveloping.
Constellation Blue earns its keep as a statement: accent walls, a front door, cabinetry, a moody powder room, or exterior trim where you want sharp contrast. Blues calm a room, which makes them popular in bedrooms, bathrooms and home offices.
Closest matches by brand
14 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
Benjamin Moore
Valspar
PPG / Glidden
Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Dunn-Edwards
Farrow & Ball
Diamond Vogel
Hirshfield's
C2 Paint
Annie Sloan
Kompozit
Similar Behr colors
closest in the Behr deckThe nearest shades to Constellation Blue within Behr'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 #3C4670 in HSL space. Pair Constellation Blue 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.
Behr Constellation Blue Equivalents at Other Brands
Matching Constellation Blue 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 Behr T18-18 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Constellation Blue
Sherwin-Williams's nearest match is Valiant Violet (SW 6818), visually identical in normal room light (ΔE 1.77). It sits at the same lightness (LRV 6 vs 7) and carries a cool blue undertone, so it substitutes for Constellation Blue without repainting risk. See the full Valiant Violet swatch →
Benjamin Moore Equivalent of Constellation Blue
Benjamin Moore's nearest match is Wizard (CC-966), visually identical in normal room light (ΔE 1.52). It sits at the same lightness (LRV 8 vs 7) and carries a cool blue undertone, so it substitutes for Constellation Blue without repainting risk. See the full Wizard swatch →
Valspar Equivalent of Constellation Blue
At Valspar, the closest color to Constellation Blue is Skyline (8003-47G) — very close at ΔE 3.3, though not an exact twin. It sits at the same lightness (LRV 6 vs 7) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Skyline swatch →
PPG / Glidden Equivalent of Constellation Blue
PPG / Glidden's nearest match is Daring Indigo (PPG1166-7), visually identical in normal room light (ΔE 1.86). It sits at the same lightness (LRV 7 vs 7) and carries a cool blue undertone, so it substitutes for Constellation Blue without repainting risk. See the full Daring Indigo swatch →
Glidden Equivalent of Constellation Blue
At Glidden, the closest color to Constellation Blue is Daring Indigo (PPG1166-7) — very close at ΔE 2.11, though not an exact twin. It sits at the same lightness (LRV 7 vs 7) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Daring Indigo swatch →
Dutch Boy Equivalent of Constellation Blue
At Dutch Boy, the closest color to Constellation Blue is Inky Blue (241-7DB) — very close at ΔE 2.14, though not an exact twin. It sits at the same lightness (LRV 7 vs 7) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Inky Blue swatch →
HGTV Home by Sherwin-Williams Equivalent of Constellation Blue
HGTV Home by Sherwin-Williams's nearest match is Quark (HGSW 1401), visually identical in normal room light (ΔE 1.77). It sits at the same lightness (LRV 6 vs 7) and carries a cool blue undertone, so it substitutes for Constellation Blue without repainting risk. See the full Quark swatch →
Dunn-Edwards Equivalent of Constellation Blue
At Dunn-Edwards, the closest color to Constellation Blue is Jazz Age Blues (DET574) — very close at ΔE 2.9, though not an exact twin. It sits at the same lightness (LRV 7 vs 7) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Jazz Age Blues swatch →
Farrow & Ball Equivalent of Constellation Blue
At Farrow & Ball, the closest color to Constellation Blue is Blue Maize (NO. CB11) — very close at ΔE 2.96, though not an exact twin. It sits at the same lightness (LRV 6 vs 7) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Blue Maize swatch →
Diamond Vogel Equivalent of Constellation Blue
At Diamond Vogel, the closest color to Constellation Blue is Frozen Blue (0606) — very close at ΔE 3.06, though not an exact twin. It sits at the same lightness (LRV 7 vs 7) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Frozen Blue swatch →
Hirshfield's Equivalent of Constellation Blue
Hirshfield's has no exact twin of Constellation Blue. The nearest is Hot Sauna (1271) at ΔE 3.81 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 8 vs 7). Compare large swatches before substituting. See the full Hot Sauna swatch →
C2 Paint Equivalent of Constellation Blue
C2 Paint has no exact twin of Constellation Blue. The nearest is Cordon Bleu (C2-774) at ΔE 4.53 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 7 vs 7). Compare large swatches before substituting. See the full Cordon Bleu swatch →
Annie Sloan Equivalent of Constellation Blue
Annie Sloan has no exact twin of Constellation Blue. The nearest is Napoleonic Blue (NAPOLEONIC BLUE) at ΔE 4.22 — close, but the difference shows next to trim and in side light. It runs slightly darker (LRV 5 vs 7). Compare large swatches before substituting. See the full Napoleonic Blue swatch →
Kompozit Equivalent of Constellation Blue
Kompozit has no exact twin of Constellation Blue. The nearest is Hot Sauna (1271) at ΔE 3.81 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 6 vs 7). Compare large swatches before substituting. See the full Hot Sauna swatch →