Color spec
| Brand | Glidden |
| Name | Tranquil Blue |
| SKU | 04BB 57/189 |
| Hex | #AAC9E8 |
| RGB | 170, 201, 232 |
| HSL | 210°, 57%, 79% |
| LRV | 57 |
| Undertone | cool blue tone |
| Family | Blue |
About Glidden Tranquil Blue
At LRV 57, Tranquil Blue is a light color that bounces daylight around a room without tipping into stark white. 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. It holds its undertone in most exposures, which is what makes light shades like this so forgiving room to room.
Tranquil Blue is an easy whole-room color for living spaces and bedrooms, and light enough to carry onto trim or a ceiling if you want a soft, seamless look. Blues calm a room, which makes them popular in bedrooms, bathrooms and home offices.
Closest matches by brand
11 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.
Behr
Benjamin Moore
Valspar
PPG / Glidden
Dutch Boy
Dunn-Edwards
Diamond Vogel
Hirshfield's
C2 Paint
Portola Paints
Kompozit
Similar Glidden colors
closest in the Glidden deckThe nearest shades to Tranquil Blue 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 #AAC9E8 in HSL space. Pair Tranquil 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.
Glidden Tranquil Blue Equivalents at Other Brands
Matching Tranquil 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 Glidden 04BB 57/189 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Behr Equivalent of Tranquil Blue
At Behr, the closest color to Tranquil Blue is Heritage (600F-4) — very close at ΔE 2.8, though not an exact twin. It sits at the same lightness (LRV 56 vs 57) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Heritage swatch →
Benjamin Moore Equivalent of Tranquil Blue
Benjamin Moore has no exact twin of Tranquil Blue. The nearest is Palatial Skies (800) at ΔE 4.51 — close, but the difference shows next to trim and in side light. It runs slightly darker (LRV 55 vs 57). Compare large swatches before substituting. See the full Palatial Skies swatch →
Valspar Equivalent of Tranquil Blue
At Valspar, the closest color to Tranquil Blue is Utterly Blue (4006-7B) — very close at ΔE 2.55, though not an exact twin. It sits at the same lightness (LRV 56.6 vs 57) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Utterly Blue swatch →
PPG / Glidden Equivalent of Tranquil Blue
The closest PPG / Glidden equivalent of Tranquil Blue is Set Sail (PPG1243-3). At ΔE 0.65 the two are indistinguishable on a wall — it carries the same cool blue undertone and sits at the same lightness (LRV 56 vs 57). If PPG / Glidden is your counter, order Set Sail and you'll get the same color. See the full Set Sail swatch →
Dutch Boy Equivalent of Tranquil Blue
Dutch Boy has no exact twin of Tranquil Blue. The nearest is Fine Blue (237-4DB) at ΔE 4.57 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 57 vs 57). Compare large swatches before substituting. See the full Fine Blue swatch →
Dunn-Edwards Equivalent of Tranquil Blue
At Dunn-Edwards, the closest color to Tranquil Blue is Afternoon Sky (DE5877) — very close at ΔE 2.6, though not an exact twin. It runs noticeably darker (LRV 51 vs 57) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Afternoon Sky swatch →
Diamond Vogel Equivalent of Tranquil Blue
Diamond Vogel has no exact twin of Tranquil Blue. The nearest is Simply Sparkling (0594) at ΔE 4.29 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 56 vs 57). Compare large swatches before substituting. See the full Simply Sparkling swatch →
Hirshfield's Equivalent of Tranquil Blue
At Hirshfield's, the closest color to Tranquil Blue is Simply Sparkling (0594) — very close at ΔE 2.91, though not an exact twin. It sits at the same lightness (LRV 56 vs 57) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Simply Sparkling swatch →
C2 Paint Equivalent of Tranquil Blue
At C2 Paint, the closest color to Tranquil Blue is Deep Freeze (C2-769) — very close at ΔE 2.68, though not an exact twin. It runs slightly lighter (LRV 60 vs 57) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Deep Freeze swatch →
Portola Paints Equivalent of Tranquil Blue
At Portola Paints, the closest color to Tranquil Blue is Illusion (ILLUSION) — very close at ΔE 2.2, though not an exact twin. It runs slightly darker (LRV 55 vs 57) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Illusion swatch →
Kompozit Equivalent of Tranquil Blue
At Kompozit, the closest color to Tranquil Blue is Simply Sparkling (0594) — very close at ΔE 2.91, though not an exact twin. It runs slightly darker (LRV 55 vs 57) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Simply Sparkling swatch →