Thermal (S440-7) is a deep blue from Behr with a moderate blue-green undertone, in this site’s digital reading. Estimated LRV about 7.4 (very dark): it absorbs almost all light for a dramatic, enveloping look. plan for good artificial lighting. The closest tone in another brand is Dunn-Edwards Lunar Eclipse (~98% proximity).

Closest tone to Thermal in other brands

Not the same paint: the closest name in each brand. Three brands stay in the list — tap another card to swap the last column.

LRV (estimated)

7.4 · Very dark

Undertone (estimated)

Blue-green · moderate

Temperature

Cool

Code

S440-7

HEX

#3F5052

RGB

63, 80, 82

HSL

186°, 13%, 28%

Family

Blues

Colors similar to Thermal in Behr

Neighboring tones from the same brand, if you want a shade lighter, darker, warmer, or cooler.

Thermal FAQ

What undertone does Thermal have?

Thermal is a deep blue with a moderate blue-green undertone, in this site’s digital reading. Its color temperature is cool. This is estimated from the digital color values; north-facing light pulls undertones cooler and warm bulbs pull them warmer, so check a real sample on your wall.

What is the LRV of Thermal?

Thermal has an estimated LRV (Light Reflectance Value) of about 7.4 on a 0–100 scale, which is very dark. It absorbs almost all light for a dramatic, enveloping look. Plan for good artificial lighting. It is an estimate from the digital HEX, not the LRV published by the brand.

What is the closest tone to Thermal in other brands?

Dunn-Edwards: Lunar Eclipse (DE5776), ~98% proximity; PPG: Night Watch (PPG1145-7), ~96% proximity; Benjamin Moore: Navy Masterpiece (1652), ~96% proximity; Valspar: Slate Court (5001-4C), ~96% proximity; Glidden: Night Watch (PPG1145-7), ~95% proximity; Sherwin-Williams: Tarragon (SW 9660), ~94% proximity; Farrow & Ball: Hague Blue (No. 30), ~90% proximity; HGTV Home by Sherwin-Williams: Still Water (HGSW6223), ~89% proximity. These are estimates of digital closeness on screen, not proven physical equivalence or official conversions; always compare a real sample of both.

What is the HEX code of Thermal?

The HEX code of Thermal (S440-7) is #3F5052, RGB 63, 80, 82. Use it for digital mockups; painted color will vary with light and sheen.