#3f4855 - Whispered Secret color

A deep, muted slate-blue with strong gray undertones, this color feels cool, restrained, and sophisticated. It evokes overcast skies, polished steel, and stormy evenings—subtle rather than brash. Its low chroma makes it versatile for elegant backgrounds, modern interiors, and corporate palettes, providing a calm, grounding presence. It pairs beautifully with warm metallics like copper or brass, soft creams, and pale blushes to add contrast while maintaining an overall refined, slightly moody aesthetic.

#3f4855 color RGB value is 63, 72, 85, and the CMYK value is 0.259, 0.153, 0.00, 0.667. Alternative names for that color are: whispered secret, gray, darkslategray, river bed, outer space, indigo, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	63, 72, 85	rgb(63, 72, 85)
CMYK	0.259, 0.153, 0.00, 0.667	-
sRGB	0.247, 0.282, 0.333	rgb(24.7%, 28.2%, 33.3%)
Adobe® 98 RGB compatible	0.265, 0.288, 0.334	color(a98-rgb, 0.265, 0.288, 0.334)
HCT	255, 13.3, 30.3	color(--hct, 255, 9.14%, 30.3%)
HSL	215, 14.9, 29.0	hsl(215, 14.9%, 29%)
HSV	215, 25.9, 33.3	color(--hsv, 215, 25.9%, 33.3%)
HWB	215, 24.7, 66.7	hwb(215, 24.7%, 66.7%)
Lab	30.2, -1.25, -9.06	lab(30.2%, -1.25, -9.06)
P3	0.254, 0.281, 0.329	color(display-p3, 0.254, 0.281, 0.329)
XYZ D50	0.0596, 0.0630, 0.0719	color(xyz-d50, 0.06, 0.063, 0.072)