Thermal
There is more to Behr Thermal (S440-7) than the swatch alone: its depth, undertones and setting all shape the final impression. A blue undertone may emerge most clearly where the paint meets a cleaner white, stone surface or contrasting textile. Its related shades below reveal where the color harmonizes—and where contrast brings it fully to life.
Hex
#3f5052
LRV
7.42
Thermal in Rooms
Follow Thermal from one space to another and watch how light, scale and surrounding materials reshape its character. 11 sourced room photos offer a closer look at the color in lived-in settings.
5 Bedroom Photos
Thermal (S440-7) moves through 5 bedroom images without becoming a fixed prescription for the room. Its cool classification can bring a composed, clean tension to warmer finishes.
Neutral bedding pops against the rich Thermal-painted accent wall.
@sweetkrypt
Warm Thermal tones create an inviting sanctuary in this restful bedroom.
@rumfieldhomestead
Layered textiles and soft lighting enhance the cozy Thermal bedroom.
@rumfieldhomestead
Deep Thermal walls frame the bed as the room's focal point.
@rumfieldhomestead
Crisp white trim contrasts sharply with warm Thermal-painted walls.
@rumfieldhomestead
3 Living Room Photos
The 3 living room images turn a blue swatch into something more spatial and expressive. Its cool classification can bring a composed, clean tension to warmer finishes.
A statement fireplace mantel stands prominent against Thermal walls in this living area.
@ashlynn.designs
Neutral furnishings allow the Thermal walls to become the design centerpiece.
@love_your_wild
Wooden beams and Thermal walls establish a warm, grounded living space.
@love_your_wild
3 Misc Photos
3 sourced room photos give the gallery a lived-in point of reference. Together they show Thermal (S440-7) as inspiration rather than a promise of an identical result.
A vintage dresser painted in rich Thermal becomes an instant conversation starter.
@zussiemakesit
Warm wall tones create depth with Thermal's rich, inviting appearance.
@destineecreateshome
Painted furniture in Thermal gains a sophisticated, earthy presence.
@sidunscripted
Similar Colors
Whale Gray reads slightly lighter (LRV 13 vs 7), a gap that shows most in low-lit rooms.
Underwater reads slightly lighter (LRV 11 vs 7), a gap that shows most in low-lit rooms.
Polaris Blue reflects far more light (LRV 23 vs 7), opening up a space where Thermal encloses it.
Sequoia Lake reads slightly lighter (LRV 13 vs 7), a gap that shows most in low-lit rooms.
Color Codes
Manufacturer description
Immerse yourself in the warmth and sophistication of Behr Thermal (S440-7), a rich and inviting hue that evokes coziness and luxury. This deep shade of brown with hints of crimson is perfect for creating a refined and elegant atmosphere in living rooms, dining rooms, or home offices. Behr S440-7 Thermal adds a touch of glamour and intimacy to any space, making it ideal for those seeking a sense of opulence and comfort. Embrace the rich allure of Behr S440-7 Thermal and transform your interior into a sanctuary of style and sophistication.","html_description":"","color":"#3f5052","color_rgb":{"r":63,"g":80,"b":82},"color_hsv":{"h":186,"s":13,"v":28},"codes":{"hsv":"Hue: 186° Saturation: 23.17% Value: 32.16%","hsl":"hsl(186, 13, 28)","cmyk":"Cyan: 23.17 Magenta: 2.44 Yellow: 0.0 Key: 67.84","yiq":"Y: 75.145 I: -10.773 Q: -2.974","xyz":"X: 6.441 Y: 7.403 Z: 9.07","cie_lab":"L:32.707 a:-6.097 b:-3.368","cie_luv":"L:32.707 u:-8.412 v:-3.348","decimal":"4149330","hunter_lab":"27.209, -5.359, -0.718"},"slug":"behr-thermal","lrv":"7.42","cover":"/uploads/color_cover/color_cover/behr-thermal.webp","palette":"Behr","palette_slug":"behr","official_page":null,"collections":"","samplize_link":"","brightness":"Dark","brightness_slug":"dark","published_date":"2024-01-30T14:08:01.396Z","updated_date":"2025-12-21T18:09:48.158Z","noindex":false,"images":{"all":{"images":[{"url":"/uploads/color_image/behr-thermal-35.webp","description":"Behr Thermal painted dresser color review","source":"https://www.instagram.com/p/CQRlRm3g_8X/","source_title":"@zussiemakesit","source_active":true,"width":1440,"height":1794,"color_image_small":"/uploads/color_image_small/behr-thermal-35.avif"},{"url":"/uploads/color_image/behr-thermal-32.webp","description":"Behr Thermal wall paint 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Attributed to Behr catalog data.