Color spec
| Brand | Farrow & Ball |
| Name | Cook's Blue |
| SKU | No. 237 |
| Hex | #6A8FB2 |
| RGB | 106, 143, 178 |
| HSL | 209°, 32%, 56% |
| LRV | 26 |
| Undertone | cool blue tone |
| Family | Blue |
About Farrow & Ball Cook's Blue
Cook's Blue sits in the mid-range at LRV 26, so it shifts visibly through the day — lighter and more open in morning light, deeper and moodier after dark. 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. South-facing rooms will pull it lighter and warmer, while north light cools it down.
Cook's Blue is versatile enough for full rooms but has enough depth to anchor a space, so it suits living rooms, bedrooms and cabinetry alike. Blues calm a room, which makes them popular in bedrooms, bathrooms and home offices.
Closest matches by brand
13 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
Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Dunn-Edwards
Diamond Vogel
Hirshfield's
C2 Paint
Annie Sloan
Kompozit
Similar Farrow & Ball colors
closest in the Farrow & Ball deckThe nearest shades to Cook's Blue within Farrow & Ball'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 #6A8FB2 in HSL space. Pair Cook's 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.
Farrow & Ball Cook's Blue Equivalents at Other Brands
Matching Cook's 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 Farrow & Ball No. 237 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Cook's Blue
Sherwin-Williams's nearest match is Scanda (SW 6529), visually identical in normal room light (ΔE 1.95). It sits at the same lightness (LRV 25 vs 26) and carries a cool blue undertone, so it substitutes for Cook's Blue without repainting risk. See the full Scanda swatch →
Behr Equivalent of Cook's Blue
Behr's nearest match is Mysteria (580F-5), visually identical in normal room light (ΔE 1.76). It sits at the same lightness (LRV 26 vs 26) and carries a cool blue undertone, so it substitutes for Cook's Blue without repainting risk. See the full Mysteria swatch →
Benjamin Moore Equivalent of Cook's Blue
Benjamin Moore's nearest match is Blue Dragon (810), visually identical in normal room light (ΔE 1.54). It runs slightly lighter (LRV 28 vs 26) and carries a cool blue undertone, so it substitutes for Cook's Blue without repainting risk. See the full Blue Dragon swatch →
Valspar Equivalent of Cook's Blue
At Valspar, the closest color to Cook's Blue is Splendid Blue (4004-6A) — very close at ΔE 2.23, though not an exact twin. It sits at the same lightness (LRV 25.9 vs 26) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Splendid Blue swatch →
Glidden Equivalent of Cook's Blue
Glidden has no exact twin of Cook's Blue. The nearest is Centurion Blue (30BB 27/209) at ΔE 4.15 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 27 vs 26). Compare large swatches before substituting. See the full Centurion Blue swatch →
Dutch Boy Equivalent of Cook's Blue
Dutch Boy's nearest match is Blue Jay Blue (239-5DB), visually identical in normal room light (ΔE 1.95). It sits at the same lightness (LRV 25 vs 26) and carries a cool blue undertone, so it substitutes for Cook's Blue without repainting risk. See the full Blue Jay Blue swatch →
HGTV Home by Sherwin-Williams Equivalent of Cook's Blue
HGTV Home by Sherwin-Williams's nearest match is Scanda (HGSW 1383), visually identical in normal room light (ΔE 1.95). It sits at the same lightness (LRV 25 vs 26) and carries a cool blue undertone, so it substitutes for Cook's Blue without repainting risk. See the full Scanda swatch →
Dunn-Edwards Equivalent of Cook's Blue
The closest Dunn-Edwards equivalent of Cook's Blue is Genteel Blue (DET589). At ΔE 0.66 the two are indistinguishable on a wall — it carries the same cool blue undertone and sits at the same lightness (LRV 27 vs 26). If Dunn-Edwards is your counter, order Genteel Blue and you'll get the same color. See the full Genteel Blue swatch →
Diamond Vogel Equivalent of Cook's Blue
Diamond Vogel's nearest match is Heavenly Sky (0618), visually identical in normal room light (ΔE 1.94). It runs slightly lighter (LRV 28 vs 26) and carries a cool blue undertone, so it substitutes for Cook's Blue without repainting risk. See the full Heavenly Sky swatch →
Hirshfield's Equivalent of Cook's Blue
The closest Hirshfield's equivalent of Cook's Blue is Heavenly Sky (0618). At ΔE 0.35 the two are indistinguishable on a wall — it carries the same cool blue undertone and runs slightly lighter (LRV 28 vs 26). If Hirshfield's is your counter, order Heavenly Sky and you'll get the same color. See the full Heavenly Sky swatch →
C2 Paint Equivalent of Cook's Blue
At C2 Paint, the closest color to Cook's Blue is Swallow Tail (C2-765) — very close at ΔE 2.27, though not an exact twin. It sits at the same lightness (LRV 26 vs 26) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Swallow Tail swatch →
Annie Sloan Equivalent of Cook's Blue
Annie Sloan has no exact twin of Cook's Blue. The nearest is Greek Blue (GREEK BLUE) at ΔE 3.51 — close, but the difference shows next to trim and in side light. It runs slightly darker (LRV 23 vs 26). Compare large swatches before substituting. See the full Greek Blue swatch →
Kompozit Equivalent of Cook's Blue
The closest Kompozit equivalent of Cook's Blue is Heavenly Sky (0618). At ΔE 0.35 the two are indistinguishable on a wall — it carries the same cool blue undertone and sits at the same lightness (LRV 26 vs 26). If Kompozit is your counter, order Heavenly Sky and you'll get the same color. See the full Heavenly Sky swatch →