#3a3f41 - Seaplane Grey color

A cool, muted charcoal with blue-green undertones, this color reads as a deep slate—calm, sophisticated and slightly stormy. It’s desaturated enough to function as a neutral yet retains subtle depth and personality. It pairs beautifully with warm woods, soft creams, brass accents, or crisp white for contrast. Ideal for modern interiors, branding, and user interfaces, it conveys stability and quiet elegance while providing a moody, contemporary backdrop without feeling heavy or oppressive.

#3a3f41 color RGB value is 58, 63, 65, and the CMYK value is 0.108, 0.0308, 0.00, 0.745. Alternative names for that color are: seaplane grey, black, darkslategray, cape cod, outer space, indigo, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	58, 63, 65	rgb(58, 63, 65)
CMYK	0.108, 0.0308, 0.00, 0.745	-
sRGB	0.227, 0.247, 0.255	rgb(22.7%, 24.7%, 25.5%)
Adobe® 98 RGB compatible	0.243, 0.255, 0.262	color(a98-rgb, 0.243, 0.255, 0.262)
HCT	220, 5.52, 26.3	color(--hct, 220, 3.81%, 26.3%)
HSL	197, 5.69, 24.1	hsl(197, 5.69%, 24.1%)
HSV	197, 10.8, 25.5	color(--hsv, 197, 10.8%, 25.5%)
HWB	197, 22.7, 74.5	hwb(197, 22.7%, 74.5%)
Lab	26.2, -1.81, -1.99	lab(26.2%, -1.81, -1.99)
P3	0.231, 0.246, 0.254	color(display-p3, 0.231, 0.246, 0.254)
XYZ D50	0.0452, 0.0483, 0.0432	color(xyz-d50, 0.045, 0.048, 0.043)