#0f282f - Black Box color

A deeply muted teal-blue with near-black depth, this shade reads as an elegant, maritime slate. Cool cyan undertones give it a faint oceanic shimmer while heavy darkness keeps it grounded and mysterious. It feels modern and sophisticated, ideal for moody backgrounds, industrial interiors, and restrained branding. Paired with warm brass or soft cream it becomes luxurious; combined with crisp white it gains contrast and clarity. Overall, it evokes calm strength, nighttime waters, and quiet refinement.

#0f282f color RGB value is 15, 40, 47, and the CMYK value is 0.681, 0.149, 0.00, 0.816. Alternative names for that color are: black box, black, darkslategray, firefly, indigo, darkslategrey.

Open Color Palette Builder Open Color Wheel

Color Conversion

Name	Values	CSS
RGB(0-255)	15, 40, 47	rgb(15, 40, 47)
CMYK	0.681, 0.149, 0.00, 0.816	-
sRGB	0.0588, 0.157, 0.184	rgb(5.88%, 15.7%, 18.4%)
Adobe® 98 RGB compatible	0.120, 0.173, 0.197	color(a98-rgb, 0.12, 0.173, 0.197)
HCT	219, 16.7, 14.5	color(--hct, 219, 11.5%, 14.5%)
HSL	193, 51.6, 12.2	hsl(193, 51.6%, 12.2%)
HSV	193, 68.1, 18.4	color(--hsv, 193, 68.1%, 18.4%)
HWB	193, 5.88, 81.6	hwb(193, 5.88%, 81.6%)
Lab	14.4, -8.12, -7.72	lab(14.4%, -8.12, -7.72)
P3	0.0838, 0.155, 0.181	color(display-p3, 0.084, 0.155, 0.181)
XYZ D50	0.0143, 0.0180, 0.0224	color(xyz-d50, 0.014, 0.018, 0.022)