#3f4143 - Deep Space color

Imagine a deep charcoal slategrey with cool undertones—mostly neutral but leaning slightly toward blue-green. It’s a muted, medium-dark tone that reads almost black in low light yet reveals subtle smoky hints in brighter settings. The color feels refined and modern, evoking polished concrete, weathered steel, or urban architecture. It pairs well with warm woods, brass accents, or pale creams for contrast, and works nicely as a sophisticated background or accent in minimalist interiors and user-interface palettes.

color #3f4143

#3f4143 color RGB value is 63, 65, 67, and the CMYK value is 0.0597, 0.0299, 0.00, 0.737. Alternative names for that color are: deep space, gray, darkslategray, cape cod, outer space, indigo, darkslategrey.

Color Conversion

Name
Values
CSS
RGB(0-255)
63, 65, 67
rgb(63, 65, 67)
CMYK
0.0597, 0.0299, 0.00, 0.737
-
sRGB
0.247, 0.255, 0.263
rgb(24.7% 25.5% 26.3%)
Adobe® 98 RGB compatible
0.258, 0.263, 0.270
color(a98-rgb 0.258 0.263 0.27)
HCT
236, 3.67, 27.4
color(--hct 236 2.53% 27.4%)
HSL
210, 3.08, 25.5
hsl(210 3.08% 25.5%)
HSV
210, 5.97, 26.3
color(--hsv 210 5.97% 26.3%)
HWB
210, 24.7, 73.7
hwb(210 24.7% 73.7%)
Lab
27.4, -0.523, -1.53
lab(27.4 -0.523 -1.53)
P3
0.248, 0.255, 0.262
color(display-p3 0.248 0.255 0.262)
XYZ D50
0.0501, 0.0524, 0.0459
color(xyz-d50 0.05 0.052 0.046)

Shades

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Tints

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Tones

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Color Harmonies

HEX:#3f4143
RGB:63 65 67
HSL:210deg 3.08% 25.49%
HEX:#43413f
RGB:67 65 63
HSL:30deg 3.08% 25.49%

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