Valspar

Mountain River

4005-6C

Mountain River is a dark slate blue with a muted teal undertone. It is deep and cool. Use it for a front door, office wall, or built-in shelves where a softer navy alternative fits.

LRV 9 means weak lighting will make it look charcoal. Clean white trim defines the edges. Warm wood prevents the room from feeling too cold. Satin finish is practical on doors.

Brand

Valspar

Code

4005-6C

Collection

2022 Color Of The Year

Mountain River 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 Mountain River under artificial light

Natural Lighting

Living room scene to simulate Valspar Mountain River under natural light

Technical Specifications

Undertones

Type

Blue

Strength

Medium

Temperature

cool

Hue Angle

207°

Cyan Family

Lightness

33%

Dark

Saturation

25%

Muted

LRV

9.0
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
#3f576a
RGB Decimal
63, 87, 106
RGB Percent
24.7%, 34.1%, 41.6%
HSL
206.5, 25.4%, 33.1%
HSV
206.5, 40.6%, 41.6%
CMYK
40.6%, 17.9%, 0.0%, 58.4%
YIQ
82.0, -20.4, 0.9
XYZ
8.06, 8.91, 14.93
CIE Lab
35.82, -3.69, -13.80
CIE Luv
35.82, -11.66, -17.84
Hunter Lab
29.86, -2.54, -11.25
Decimal
4151146

Coordinating Colors and Color Palettes