#304e63 - Sovereignty color

That deep slate-teal blends blue and green with gray undertones, producing a cool, muted navy-teal hue that feels calm and composed. It evokes stormy coastal waters, weathered metal, and sophisticated maritime interiors. The color reads as mature and stable—professional yet approachable—working well for corporate branding, websites, and interiors seeking a grounded, contemporary mood. Pair it with warm neutrals like tan and cream, soft coral or mustard accents, or pale grays for contrast and visual balance.

#304e63 color RGB value is 48, 78, 99, and the CMYK value is 0.515, 0.212, 0.00, 0.612. Alternative names for that color are: sovereignty, gray, darkslategray, pickled bluewood, outer space, indigo, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	48, 78, 99	rgb(48, 78, 99)
CMYK	0.515, 0.212, 0.00, 0.612	-
sRGB	0.188, 0.306, 0.388	rgb(18.8%, 30.6%, 38.8%)
Adobe® 98 RGB compatible	0.239, 0.310, 0.385	color(a98-rgb, 0.239, 0.31, 0.385)
HCT	241, 23.5, 31.8	color(--hct, 241, 16.2%, 31.8%)
HSL	205, 34.7, 28.8	hsl(205, 34.7%, 28.8%)
HSV	205, 51.5, 38.8	color(--hsv, 205, 51.5%, 38.8%)
HWB	205, 18.8, 61.2	hwb(205, 18.8%, 61.2%)
Lab	31.5, -6.61, -16.0	lab(31.5%, -6.61, -16)
P3	0.215, 0.303, 0.381	color(display-p3, 0.215, 0.303, 0.381)
XYZ D50	0.0601, 0.0688, 0.0969	color(xyz-d50, 0.06, 0.069, 0.097)