Color spec
| Brand | Dunn-Edwards |
| Name | Blue Monday |
| SKU | DET568 |
| Hex | #637983 |
| RGB | 99, 121, 131 |
| HSL | 199°, 14%, 45% |
| LRV | 18 |
| Undertone | cool blue-green tone |
| Family | Blue |
About Dunn-Edwards Blue Monday
With an LRV of 18, Blue Monday is a deep, dramatic shade. It soaks up light in north-facing rooms and looks richest where strong daylight hits it. 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. Warm artificial light softens it; cool LED can make it look flat, so match your bulbs to the mood you want.
Blue Monday 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
14 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
Valspar
PPG / Glidden
Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Magnolia Home
Farrow & Ball
Diamond Vogel
Hirshfield's
Rodda
C2 Paint
Similar Dunn-Edwards colors
closest in the Dunn-Edwards deckThe nearest shades to Blue Monday within Dunn-Edwards'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 #637983 in HSL space. Pair Blue Monday 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.
Dunn-Edwards Blue Monday Equivalents at Other Brands
Matching Blue Monday 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 Dunn-Edwards DET568 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Blue Monday
Sherwin-Williams's nearest match is Labradorite (SW 7619), visually identical in normal room light (ΔE 1.27). It sits at the same lightness (LRV 19 vs 18) and carries a cool blue-green undertone, so it substitutes for Blue Monday without repainting risk. See the full Labradorite swatch →
Behr Equivalent of Blue Monday
At Behr, the closest color to Blue Monday is Country Lake (ECC-54-2) — very close at ΔE 2.08, though not an exact twin. It sits at the same lightness (LRV 18 vs 18) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Country Lake swatch →
Benjamin Moore Equivalent of Blue Monday
Benjamin Moore's nearest match is Stillwater (1650), visually identical in normal room light (ΔE 1.56). It sits at the same lightness (LRV 19 vs 18) and carries a cool blue undertone, so it substitutes for Blue Monday without repainting risk. See the full Stillwater swatch →
Valspar Equivalent of Blue Monday
At Valspar, the closest color to Blue Monday is Blue Thunder (8004-37F) — very close at ΔE 2.28, though not an exact twin. It sits at the same lightness (LRV 18 vs 18) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Blue Thunder swatch →
PPG / Glidden Equivalent of Blue Monday
At PPG / Glidden, the closest color to Blue Monday is Freedom Found (PPG1040-6) — very close at ΔE 2.2, though not an exact twin. It sits at the same lightness (LRV 18 vs 18) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Freedom Found swatch →
Glidden Equivalent of Blue Monday
Glidden's nearest match is Night Rendezvous (PPG1037-5), visually identical in normal room light (ΔE 1.97). It sits at the same lightness (LRV 18 vs 18) and carries a cool blue-green undertone, so it substitutes for Blue Monday without repainting risk. See the full Night Rendezvous swatch →
Dutch Boy Equivalent of Blue Monday
Dutch Boy's nearest match is Aged Denim (431-4DB), visually identical in normal room light (ΔE 1.27). It sits at the same lightness (LRV 19 vs 18) and carries a cool blue-green undertone, so it substitutes for Blue Monday without repainting risk. See the full Aged Denim swatch →
HGTV Home by Sherwin-Williams Equivalent of Blue Monday
At HGTV Home by Sherwin-Williams, the closest color to Blue Monday is Aquamarined (HGSW 3313) — very close at ΔE 3.44, though not an exact twin. It sits at the same lightness (LRV 19 vs 18) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Aquamarined swatch →
Magnolia Home Equivalent of Blue Monday
Magnolia Home has no exact twin of Blue Monday. The nearest is Demo Day (JG-79) at ΔE 4.51 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 17 vs 18). Compare large swatches before substituting. See the full Demo Day swatch →
Farrow & Ball Equivalent of Blue Monday
At Farrow & Ball, the closest color to Blue Monday is Sloe Blue (NO. 87) — very close at ΔE 2.43, though not an exact twin. It sits at the same lightness (LRV 18 vs 18) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Sloe Blue swatch →
Diamond Vogel Equivalent of Blue Monday
At Diamond Vogel, the closest color to Blue Monday is Bowman Blue (0500) — very close at ΔE 2.81, though not an exact twin. It sits at the same lightness (LRV 17 vs 18) and carries a cool blue-green undertone; sample both side by side if the room gets strong natural light. See the full Bowman Blue swatch →
Hirshfield's Equivalent of Blue Monday
Hirshfield's has no exact twin of Blue Monday. The nearest is Rocky Hill (H0050) at ΔE 3.89 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 18 vs 18). Compare large swatches before substituting. See the full Rocky Hill swatch →
Rodda Equivalent of Blue Monday
At Rodda, the closest color to Blue Monday is Blue Jay (CA202) — very close at ΔE 2.32, though not an exact twin. It sits at the same lightness (LRV 17 vs 18) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Blue Jay swatch →
C2 Paint Equivalent of Blue Monday
C2 Paint has no exact twin of Blue Monday. The nearest is Bluegrass (C2-728) at ΔE 4.12 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 17 vs 18). Compare large swatches before substituting. See the full Bluegrass swatch →