Loyal Blue
SW 6510 · #01455E · LRV 5 — cool blue-green tone, very dark — reads black in most rooms.
- 1Loyal Blue5
- 2Waterloo13
- 3Charcoal Blue19
What Color Is Loyal Blue, Really?
Loyal Blue reads as a cool blue-green tone — very dark — reads black in most rooms. The notes below cover how Sherwin-Williams SW 6510 behaves in different light and the closest matches at competing US brands.
Best Rooms and Uses for Loyal Blue
Loyal 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.
How Lighting Changes Loyal Blue
At LRV 5, Loyal 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 teal 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.
Most complaints about Loyal Blue are a light mismatch. Upload a photo of your actual room and see it on your walls — then ask for the same wall in north light or evening lamps before you buy a single sample.
Need It From Another Brand?
Any paint counter can custom-tint Sherwin-Williams SW 6510 directly. If you would rather stay in one brand's own deck, these are the closest stock matches, measured as ΔE2000. Under 2 is a difference you will not see on the wall.
| Brand | Closest color | ΔE | LRV | |
|---|---|---|---|---|
| Behr | Velvet Evening540F-7 · Behr | 3.0 | 5 | Color page → |
| Benjamin Moore | Adriatic SeaCSP-660 · Benjamin Moore | 1.3 | 5 | Color page → |
| Dutch Boy | Mariana Blue334-7DB · Dutch Boy | 4.9 | 5 | Color page → |
| HGTV Home by Sherwin-Williams | Narragansett NavyHGSW 2361 · HGTV Home by Sherwin-Williams | 0.0 | 5 | Color page → |
| Dunn-Edwards | Deep OceanDEA135 · Dunn-Edwards | 4.3 | 6 | Color page → |
Similar Sherwin-Williams Colors
The nearest shades to Loyal Blue within Sherwin-Williams's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
WCAG 2.1: AA is 4.5 : 1 for normal text, 3 : 1 for large text, AAA is 7 : 1.
Coordinated palette
Generated by hue-rotating #01455E in HSL space. Pair Loyal Blue with one accent and one neutral — the swatches below are starting points, not final picks.
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