#56564b - Shell Brown color

The color is a muted, deep gray-green with warm olive undertones—a dusky, slate-like neutral that reads as sophisticated and earthy. It evokes weathered metal, aged leather, and moss-covered stone, lending a quietly masculine, vintage feel. Under different light it leans slightly warmer, revealing brownish hints, while in bright settings the green-gray character becomes clearer. It pairs beautifully with cream, rust, ochre, and brass for contrast, or with soft taupes for understated cohesion.

#56564b color RGB value is 86, 86, 75, and the CMYK value is 0.00, 0.00, 0.128, 0.663. Alternative names for that color are: shell brown, gray, dimgray, fuscous gray, outer space, green.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	86, 86, 75	rgb(86, 86, 75)
CMYK	0.00, 0.00, 0.128, 0.663	-
sRGB	0.337, 0.337, 0.294	rgb(33.7%, 33.7%, 29.4%)
Adobe® 98 RGB compatible	0.340, 0.340, 0.301	color(a98-rgb, 0.34, 0.34, 0.301)
HCT	116, 6.72, 36.3	color(--hct, 116, 4.64%, 36.3%)
HSL	60.0, 6.83, 31.6	hsl(60, 6.83%, 31.6%)
HSV	60.0, 12.8, 33.7	color(--hsv, 60, 12.8%, 33.7%)
HWB	60.0, 29.4, 66.3	hwb(60, 29.4%, 66.3%)
Lab	36.3, -1.64, 6.44	lab(36.3%, -1.64, 6.44)
P3	0.337, 0.337, 0.298	color(display-p3, 0.337, 0.337, 0.298)
XYZ D50	0.0865, 0.0917, 0.0606	color(xyz-d50, 0.086, 0.092, 0.061)