Color spec
| Brand | Valspar |
| Name | Cosmic Blue |
| SKU | 4008-10C |
| Hex | #0178B6 |
| RGB | 1, 120, 182 |
| HSL | 201°, 99%, 36% |
| LRV | 15.6 |
| Undertone | cool blue tone |
| Family | Blue |
About Valspar Cosmic Blue
With an LRV of 15.6, Cosmic Blue is a deep, dramatic shade. It soaks up light in north-facing rooms and looks richest where strong daylight hits it. 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. Warm artificial light softens it; cool LED can make it look flat, so match your bulbs to the mood you want.
Cosmic Blue works best as a feature — a single wall, built-ins, a study or dining room — rather than wrapping a whole bright space. 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.
Sherwin-Williams
Behr
Benjamin Moore
PPG / Glidden
Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Dunn-Edwards
Farrow & Ball
Hirshfield's
Kompozit
Similar Valspar colors
closest in the Valspar deckThe nearest shades to Cosmic Blue within Valspar'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 #0178B6 in HSL space. Pair Cosmic 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.
Valspar Cosmic Blue Equivalents at Other Brands
Matching Cosmic 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 Valspar 4008-10C directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Behr Equivalent of Cosmic Blue
Behr's nearest match is Glacier Lake (S-G-530), visually identical in normal room light (ΔE 1.97). It runs slightly lighter (LRV 18 vs 15.6) and carries a cool blue undertone, so it substitutes for Cosmic Blue without repainting risk. See the full Glacier Lake swatch →
Benjamin Moore Equivalent of Cosmic Blue
At Benjamin Moore, the closest color to Cosmic Blue is Blue Macaw (784) — very close at ΔE 2.86, though not an exact twin. It sits at the same lightness (LRV 16 vs 15.6) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Blue Macaw swatch →
PPG / Glidden Equivalent of Cosmic Blue
At PPG / Glidden, the closest color to Cosmic Blue is Cobalt Glaze (PPG1240-7) — very close at ΔE 2.5, though not an exact twin. It sits at the same lightness (LRV 15 vs 15.6) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Cobalt Glaze swatch →
Glidden Equivalent of Cosmic Blue
At Glidden, the closest color to Cosmic Blue is Cobalt Glaze (PPG1240-7) — very close at ΔE 2.5, though not an exact twin. It sits at the same lightness (LRV 15 vs 15.6) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Cobalt Glaze swatch →
Dutch Boy Equivalent of Cosmic Blue
At Dutch Boy, the closest color to Cosmic Blue is Making Waves (138-7DB) — very close at ΔE 2.47, though not an exact twin. It sits at the same lightness (LRV 17 vs 15.6) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Making Waves swatch →
Dunn-Edwards Equivalent of Cosmic Blue
The closest Dunn-Edwards equivalent of Cosmic Blue is Americana (DE5845). At ΔE 0.41 the two are indistinguishable on a wall — it carries the same cool blue undertone and sits at the same lightness (LRV 16 vs 15.6). If Dunn-Edwards is your counter, order Americana and you'll get the same color. See the full Americana swatch →
Farrow & Ball Equivalent of Cosmic Blue
Farrow & Ball has no exact twin of Cosmic Blue. The nearest is Pea Flower Tea (NO. CB12) at ΔE 4.94 — close, but the difference shows next to trim and in side light. It runs slightly lighter (LRV 20 vs 15.6). Compare large swatches before substituting. See the full Pea Flower Tea swatch →
Hirshfield's Equivalent of Cosmic Blue
Hirshfield's's nearest match is Biloxi Blue (H0058), visually identical in normal room light (ΔE 1.52). It sits at the same lightness (LRV 15 vs 15.6) and carries a cool blue undertone, so it substitutes for Cosmic Blue without repainting risk. See the full Biloxi Blue swatch →
Kompozit Equivalent of Cosmic Blue
At Kompozit, the closest color to Cosmic Blue is Skylla (0640) — very close at ΔE 2.91, though not an exact twin. It runs slightly lighter (LRV 19 vs 15.6) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Skylla swatch →