Valspar

Blue Thunder

V139-5

Blue Thunder is a dark gray with a blue-green cast, closer to storm cloud than navy. The blue-green cast gives this charcoal a colder, stormier weight. Use it on built-ins, stair railings, or exterior trim where a standard charcoal would be too plain.

LRV 18 means it needs contrast and decent lighting. Creamy whites soften the edge. In flat paint, scuffs may show faster than expected.

Brand

Valspar

Code

V139-5

Blue Thunder in Different Light

Light temperature is measured in Kelvin: a warm 2700K bulb pulls colors toward yellow, while 5000K daylight reads cooler and truer. Check the color at the time of day you actually use the room.

Artificial Lighting

Bedroom scene to simulate Valspar Blue Thunder under artificial light

Natural Lighting

Living room scene to simulate Valspar Blue Thunder under natural light

Technical Specifications

Undertones

Type

Cyan/Teal

Strength

Low

Temperature

cool

Hue Angle

192°

Cyan Family

Lightness

45%

Medium

Saturation

13%

Very Muted

LRV

18.0
0%100%
Very Dark
Dark
Medium
Light
Very Light
White

LRV measures how much light a color reflects, from 0 (black) to 100 (pure white). Below about 50 a color needs good lighting to avoid going flat, 60 and up helps brighten a room, and most whites sit above 80.

Color Position
Saturation →
Lightness →

Color Codes

HEX
#637a80
RGB Decimal
99, 122, 128
RGB Percent
38.8%, 47.8%, 50.2%
HSL
192.4, 12.8%, 44.5%
HSV
192.4, 22.7%, 50.2%
CMYK
22.7%, 4.7%, 0.0%, 49.8%
YIQ
115.8, -15.6, -3.0
XYZ
16.00, 18.13, 23.08
CIE Lab
49.65, -6.90, -6.05
CIE Luv
49.65, -12.04, -7.43
Hunter Lab
42.58, -5.32, -5.04
Decimal
6519424

Coordinating Colors and Color Palettes