#283b4c - Harpoon color

This is a deep, muted blue-gray—slate navy with subtle teal undertones. It feels cool and sophisticated, evoking storm-swept seas, weathered steel, and shadowed coastal cliffs. Its low saturation makes it calming and professional, excellent for moody interiors, corporate branding, and elegant interfaces. Pair it with warm woods, brass accents, soft creams, or pale corals to add contrast and warmth, or with lighter grays and icy blues for a refined, monochromatic palette.

#283b4c color RGB value is 40, 59, 76, and the CMYK value is 0.474, 0.224, 0.00, 0.702. Alternative names for that color are: harpoon, black, darkslategray, pickled bluewood, outer space, indigo, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	40, 59, 76	rgb(40, 59, 76)
CMYK	0.474, 0.224, 0.00, 0.702	-
sRGB	0.157, 0.231, 0.298	rgb(15.7%, 23.1%, 29.8%)
Adobe® 98 RGB compatible	0.196, 0.241, 0.301	color(a98-rgb, 0.196, 0.241, 0.301)
HCT	246, 18.8, 24.0	color(--hct, 246, 13%, 24%)
HSL	208, 31.0, 22.7	hsl(208, 31%, 22.7%)
HSV	208, 47.4, 29.8	color(--hsv, 208, 47.4%, 29.8%)
HWB	208, 15.7, 70.2	hwb(208, 15.7%, 70.2%)
Lab	23.8, -3.86, -13.0	lab(23.8%, -3.86, -13)
P3	0.173, 0.229, 0.292	color(display-p3, 0.173, 0.229, 0.292)
XYZ D50	0.0364, 0.0405, 0.0562	color(xyz-d50, 0.036, 0.04, 0.056)