Paint Color Consultants

Benjamin Moore

Slate Blue

1648 / CC-818

Slate Blue is a desaturated, mid-value blue carrying distinct gray undertones that prevent it from reading too vivid on the wall. With an LRV of 43.21, it occupies the middle of the reflectance scale, providing moderate depth without darkening a space significantly. The gray cast shifts slightly cooler under fluorescent light and stays relatively stable under warm incandescent sources.

Balboa Mist and Edgecomb Gray offer warm neutral counterpoints that balance the coolness, while Palladian Blue extends a tonal blue-green range. Kendall Charcoal delivers sharp contrast, and White Dove serves as a reliable trim choice.
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Brand

Benjamin Moore

Code

1648 / CC-818

Collection

Benjamin Moore Classics

Slate Blue in Real Homes (6 Photos)

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Slate Blue 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 Benjamin Moore Slate Blue under artificial light

Natural Lighting

Living room scene to simulate Benjamin Moore Slate Blue under natural light

Technical Specifications

Undertones

Type

Blue

Strength

Medium

Temperature

cool

Hue Angle

199°

Cyan Family

Lightness

67%

Medium

Saturation

19%

Muted

LRV

43.2
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
#9BB1BB
RGB Decimal
155, 177, 187
RGB Percent
60.8%, 69.4%, 73.3%
HSL
198.8, 19.0%, 67.1%
HSV
198.8, 17.1%, 73.3%
CMYK
17.1%, 5.3%, 0.0%, 26.7%
YIQ
171.6, -16.3, -1.5
XYZ
38.21, 42.00, 53.11
CIE Lab
70.87, -5.43, -7.65
CIE Luv
70.87, -12.12, -10.64
Hunter Lab
64.81, -4.86, -7.32
Decimal
10203579

Coordinating Colors and Color Palettes

Darker Shades

Monochromatic dark

Slate BlueCable Knit SweaterSerene StreamPrussian Blue

Lighter Shades

Monochromatic light

Slate BlueMt. Rainier GraySweet IllusionCalla Lily

Complementary

Opposite on color wheel

Slate BlueEmerging TaupeArmadilloHoneysuckle Delight

Analogous

Adjacent colors

Slate BlueVintage RibbonNursery WallEvening Slipper

Cool Shades

Cool spectrum

Slate BlueVintage RibbonLily Of The NileEvening Slipper

Closest Paint Matches

Cross-brand matches are close, never exact. Each brand uses different bases and sheens, so sample before you buy gallons.

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Harmonious