Color information for RGB #181b21

Name
RGB #181b21
Description
Cobalt bluish black
RGB HEX
#181b21
ARGB HEX
#ff181b21
RGB 0-255
rgb(24, 27, 33)
RGBA 0-255
rgba(24, 27, 33, 1)
HSV
hsv(220.0, 27.3, 12.9)
HSL
hsl(220.0, 15.8, 11.2)
CMYK, %
cmyk(27.3, 18.2, 0.0, 87.1)
CIE-L*ab
cielab(9.7, 0.3, -4.6)
XYZ
xyz(1.0, 1.1, 1.6)

Color conversions matching RGB #181b21

Bang-v3 - [3D]

British Standard BS4800 - [3D]

British Standard BS381C

Federal Standard 595 (FED-STD-595)

Grayscale

Munsell - [3D]

ISCC–NBS - [3D]

Natural Color System (NCS) - [3D]

Pantone Matching System (PMS) Coated - [3D]

Pantone Matching System (PMS) Uncoated - [3D]

Pantone Textile Paper eXtended (TPX) - [3D]

RAL Classic - [3D]

Resene - [3D]

Websafe - [3D]

X11 Colors - [3D]

Oracal Vinyl Colors

Other

Important: Color values are derived from mathematical conversions. These conversions may be inaccurate, approximate, or unsuitable for practical use. Always consult a professional and/or authoritative references before applying them. Be aware that colors can appear very different across screens, phones, tablets, printers, projectors, and other devices.

Color harmonies based on RGB #181b21

Monochromadic Color Scheme

Analogus Color Scheme

22.5°
45°
67.5°
90°
112.5°
135°
157.5°

Double Complementary (tetradic)

22.5°
45°
67.5°
90°
112.5°
135°
157.5°

Complementary Color Scheme

Split Complementary Color Scheme

15°
30°
45°
60°
75°

Triadic (120° Analogus) Color Scheme

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