#373b40 - Crypt color

A deep, smoky charcoal with a cool blue undertone, this near-graphite shade reads as sophisticated and restrained. It carries subtle steel and slate qualities, appearing almost navy in dim light yet unmistakably gray. The color evokes industrial minimalism, quiet modernity, and evening skies; it grounds interiors, interfaces, and textiles without overpowering. It pairs beautifully with warm woods and brass for contrast or with soft neutrals and pale pastels to highlight luminosity. Practical and elegant, it lends a calm, professional atmosphere.

#373b40 color RGB value is 55, 59, 64, and the CMYK value is 0.141, 0.0781, 0.00, 0.749. Alternative names for that color are: crypt, black, darkslategray, outer space, indigo, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	55, 59, 64	rgb(55, 59, 64)
CMYK	0.141, 0.0781, 0.00, 0.749	-
sRGB	0.216, 0.231, 0.251	rgb(21.6%, 23.1%, 25.1%)
Adobe® 98 RGB compatible	0.231, 0.241, 0.258	color(a98-rgb, 0.231, 0.241, 0.258)
HCT	248, 6.59, 24.7	color(--hct, 248, 4.54%, 24.7%)
HSL	213, 7.56, 23.3	hsl(213, 7.56%, 23.3%)
HSV	213, 14.1, 25.1	color(--hsv, 213, 14.1%, 25.1%)
HWB	213, 21.6, 74.9	hwb(213, 21.6%, 74.9%)
Lab	24.6, -0.832, -3.71	lab(24.6%, -0.832, -3.71)
P3	0.219, 0.231, 0.249	color(display-p3, 0.219, 0.231, 0.249)
XYZ D50	0.0408, 0.0430, 0.0414	color(xyz-d50, 0.041, 0.043, 0.041)