Vast Sky
SW 6506 · #A9C9D7 · LRV 55 — cool blue-green tone, light — bounces daylight without going clinical.
- 1Williamsburg Wedgwood Blue28
- 2Resolute Blue40
- 3Vast Sky55
- 4Honolulu Blue62
- 5After Rain68
What Color Is Vast Sky, Really?
Vast Sky reads as a cool blue-green tone — light — bounces daylight without going clinical. The notes below cover how Sherwin-Williams SW 6506 behaves in different light and the closest matches at competing US brands.
Best Rooms and Uses for Vast Sky
Vast Sky 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.
How Lighting Changes Vast Sky
At LRV 55, Vast Sky is a light color that bounces daylight around a room without tipping into stark white. 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. It holds its undertone in most exposures, which is what makes light shades like this so forgiving room to room.
Most complaints about Vast Sky 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 6506 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 | Sea WindS480-2 · Behr | 1.2 | 56 | Color page → |
| Benjamin Moore | Greenhow BlueCW-655 · Benjamin Moore | 1.4 | 55 | Color page → |
| Valspar | Summer Rain8003-41B · Valspar | 0.6 | 55 | Color page → |
| PPG / Glidden | SonataPPG1157-3 · PPG / Glidden | 0.9 | 55 | Color page → |
| Glidden | SonataPPG1157-3 · Glidden | 1.5 | 55 | Color page → |
| Dutch Boy | Tender Blue236-3DB · Dutch Boy | 0.0 | 55 | Color page → |
Similar Sherwin-Williams Colors
The nearest shades to Vast Sky 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 #A9C9D7 in HSL space. Pair Vast Sky with one accent and one neutral — the swatches below are starting points, not final picks.
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