#303b4c - Dark Spell color

A rich, muted slate-blue with deep charcoal undertones, evoking stormy seas and polished industrial steel. Cool and restrained, it reads as sophisticated and calming rather than bright or vibrant. Ideal for backgrounds, cabinetry, and menswear, it pairs beautifully with warm metallics like brass or copper, soft creams, and pale blushes to lift its depth. Its subtle teal hint gives it modernity, making it versatile for both classic and contemporary palettes seeking quiet elegance.

#303b4c color RGB value is 48, 59, 76, and the CMYK value is 0.368, 0.224, 0.00, 0.702. Alternative names for that color are: dark spell, black, darkslategray, bright gray, outer space, indigo, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	48, 59, 76	rgb(48, 59, 76)
CMYK	0.368, 0.224, 0.00, 0.702	-
sRGB	0.188, 0.231, 0.298	rgb(18.8%, 23.1%, 29.8%)
Adobe® 98 RGB compatible	0.214, 0.241, 0.301	color(a98-rgb, 0.214, 0.241, 0.301)
HCT	259, 16.5, 24.6	color(--hct, 259, 11.4%, 24.6%)
HSL	216, 22.6, 24.3	hsl(216, 22.6%, 24.3%)
HSV	216, 36.8, 29.8	color(--hsv, 216, 36.8%, 29.8%)
HWB	216, 18.8, 70.2	hwb(216, 18.8%, 70.2%)
Lab	24.4, -1.04, -12.0	lab(24.4%, -1.04, -12)
P3	0.197, 0.230, 0.292	color(display-p3, 0.197, 0.23, 0.292)
XYZ D50	0.0401, 0.0423, 0.0563	color(xyz-d50, 0.04, 0.042, 0.056)