#3b5861 - Autumn Night color

A deep, muted teal-steel hue with cool blue-green undertones and a smoky gray cast. It reads as a sophisticated, stormy slate—less vibrant than true teal, more grounded than navy—evoking weathered metal, coastal fog, and quiet ocean depths. The color feels calm, restrained, and slightly moody, making it an excellent neutral alternative in interiors and branding. It pairs beautifully with warm woods, brass accents, soft creams, and rust tones to create balanced, elegant contrasts.

#3b5861 color RGB value is 59, 88, 97, and the CMYK value is 0.392, 0.0928, 0.00, 0.620. Alternative names for that color are: autumn night, gray, darkslategray, casal, outer space, green, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	59, 88, 97	rgb(59, 88, 97)
CMYK	0.392, 0.0928, 0.00, 0.620	-
sRGB	0.231, 0.345, 0.380	rgb(23.1%, 34.5%, 38%)
Adobe® 98 RGB compatible	0.276, 0.347, 0.379	color(a98-rgb, 0.276, 0.347, 0.379)
HCT	219, 19.0, 35.5	color(--hct, 219, 13.1%, 35.5%)
HSL	194, 24.4, 30.6	hsl(194, 24.4%, 30.6%)
HSV	194, 39.2, 38.0	color(--hsv, 194, 39.2%, 38%)
HWB	194, 23.1, 62.0	hwb(194, 23.1%, 62%)
Lab	35.4, -9.25, -8.85	lab(35.4%, -9.25, -8.85)
P3	0.256, 0.342, 0.376	color(display-p3, 0.256, 0.342, 0.376)
XYZ D50	0.0738, 0.0869, 0.0954	color(xyz-d50, 0.074, 0.087, 0.095)