#213638 - Cruel Sea color

A deeply muted teal with a strong blue-green lean, this near-charcoal shade evokes cool ocean depths and shaded evergreens. Its low brightness and subtle saturation give it a sophisticated, moody presence—calming yet authoritative. It pairs beautifully with warm metallics like brass, soft creams, pale peach, or light gray for contrast and readability. Ideal as a background or accent, it conveys elegance, stability, and quiet refinement in interiors, branding, or digital interfaces.

#213638 color RGB value is 33, 54, 56, and the CMYK value is 0.411, 0.0357, 0.00, 0.780. Alternative names for that color are: cruel sea, black, darkslategray, outer space, green, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	33, 54, 56	rgb(33, 54, 56)
CMYK	0.411, 0.0357, 0.00, 0.780	-
sRGB	0.129, 0.212, 0.220	rgb(12.9%, 21.2%, 22%)
Adobe® 98 RGB compatible	0.174, 0.223, 0.230	color(a98-rgb, 0.174, 0.223, 0.23)
HCT	204, 14.4, 21.0	color(--hct, 204, 9.9%, 21%)
HSL	185, 25.8, 17.5	hsl(185, 25.8%, 17.5%)
HSV	185, 41.1, 22.0	color(--hsv, 185, 41.1%, 22%)
HWB	185, 12.9, 78.0	hwb(185, 12.9%, 78%)
Lab	20.9, -8.23, -4.08	lab(20.9%, -8.23, -4.08)
P3	0.148, 0.210, 0.218	color(display-p3, 0.148, 0.21, 0.218)
XYZ D50	0.0265, 0.0322, 0.0320	color(xyz-d50, 0.026, 0.032, 0.032)