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Slate Blue 1648
On-screen approximation from the published RGB value. Order a physical sample before you decide.
Undertone: Noticeable blue undertone
In CIELAB, Slate Blue sits at L* 70.9, a* -5.4, b* -7.6. Its hue angle is 235° and its chroma is 9.4, so it leans blue clearly enough to notice on a full wall. It classifies as cool. Among Benjamin Moore colors with a similar LRV (±5), it is warmer (more yellow) than 13%.
LRV 43.2: mid-tone
Light Reflectance Value runs from 0 (absolute black) to 100 (perfect white). At 43.2, Slate Blue is lighter than 47% of Benjamin Moore colors. Reads clearly as a color. Best in rooms with good natural light, or as an accent wall; small dark rooms may feel smaller.
Closest Sherwin-Williams match to Slate Blue
Ranked by CIEDE2000 color difference (ΔE) computed from published RGB values. Below 2 is hard to tell apart on the wall; above 4 is a different color.
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Dockside Blue | SW 7601 | 1.20 | Very close | |
| Faded Flaxflower | SW 9146 | 1.29 | Very close | |
| Respite | SW 6514 | 2.42 | Close — difference visible side by side |
Closest Behr match to Slate Blue
Ranked by CIEDE2000 color difference (ΔE) computed from published RGB values. Below 2 is hard to tell apart on the wall; above 4 is a different color. Behr does not publish LRV, so Behr values here are estimates.
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Ovation | MQ5-59 | 1.37 | Very close | |
| Rainy Sidewalk | HDC-CT-24 | 1.48 | Very close | |
| Cloudless Day | ECC-32-1 | 1.74 | Very close |
Similar Benjamin Moore colors
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Early Morning | CC-818 | 0.00 | Practically identical | |
| Winter Lake | 2129-50 | 2.01 | Close — difference visible side by side | |
| Santorini Blue | 1634 | 2.13 | Close — difference visible side by side | |
| Exhale | AF-515 | 2.19 | Close — difference visible side by side | |
| Saratoga Springs | 1669 | 2.44 | Close — difference visible side by side | |
| Little Falls | 1621 | 2.69 | Close — difference visible side by side |
Lighter and darker versions
Colors from Benjamin Moore with nearly the same hue and saturation, one step lighter or darker.
- Celtic Blue ES-31 · lighter, LRV 45.1
- Aspen Skies 1656 · lighter, LRV 46.1
- Marlboro Blue HC-153 · lighter, LRV 46.1
- Shadow Gray 2125-40 · darker, LRV 39.5
- New Hope Gray 2130-50 · darker, LRV 39.2
- Adagio 1593 · darker, LRV 39.2
Colors that go with Slate Blue
Color-theory pairings — the nearest Benjamin Moore color to each rotated hue, keeping the same lightness and saturation:
- Driftscape Tan 2106-50 · complementary (180°)
- Ocean City Blue 718 · analogous (−30°)
- New Hope Gray 2130-50 · analogous (+30°)
- Magic Potion 1250 · triadic (120°)
- October Mist 1495 · triadic (240°)
Slate Blue vs popular colors
- Smoke (Benjamin Moore 2122-40, ΔE 7.8) is lighter (LRV 56.4 vs 43.2), more yellow/warm, more muted.
- Coventry Gray (Benjamin Moore HC-169, ΔE 9.8) is lighter (LRV 48.2 vs 43.2), more yellow/warm, more red/pink, more muted.
- Oyster Bay (Sherwin-Williams SW 6206, ΔE 10.8) is about as light, more yellow/warm, more red/pink, more muted.