Vulcan

#17171D

General Information about #17171D

The hex color #17171D, often referred to as 'Vulcan,' is a very dark shade of gray, almost black. It is composed of 9.02% red, 9.02% green, and 11.37% blue. In the RGB color space, it has values of R:23, G:23, B:29. Converting it to the CMYK color space results in approximately C:21, M:21, Y:0, K:89. This color is often associated with sophistication, minimalism, and modernity. Due to its dark nature, it is generally used as a background color or for creating contrast with lighter elements. In terms of perception, it conveys a sense of depth and can be used to create a dramatic effect when paired with brighter colors. This color finds application in various design fields, from web design to interior decoration, where a subtle, elegant dark tone is desired.

The hex color #17171D, also known as Vulcan, presents some accessibility challenges, primarily due to its low luminance. When used as a background color, text overlaid on it needs to be sufficiently bright to ensure readability. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text (14pt bold or 18pt regular). Using a lighter color for text, such as a bright white or a light gray, can help meet these contrast requirements. Tools like contrast checkers can be used to verify compliance with accessibility standards like WCAG. It's also advisable to avoid using this color for critical interactive elements without careful consideration of contrast. Users with visual impairments may struggle to perceive content against this dark background if proper contrast is not maintained. Alternatives include pairing this color with much brighter hues or using it sparingly in designs.

Shades

Digital Color Formats

RGB
23 23 29
RGB23 23 29
Red
Green
Blue
HSL
240deg 11.54% 10.2%
24011.5410.2HSL
Hue
Saturation
Lightness
HWB
240deg 9.02% 88.63%
2409.0288.63HWB
Hue
Whiteness
Blackness
hex#17171D
rgb23 23 29
hsl240deg 11.54% 10.2%
cmyk20.69% 20.69% 0% 88.63%
hwb240deg 9.02% 88.63%
xyz-d650.01 0.01 0.01
oklch0.2074 0.0118 285.3
oklab0.2074 0 -0.01
CMYK
20.69% 20.69% 0% 88.63%
20.6920.69088.63CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.2074 0.0118 285.3
0.20740.0118285.3LCH
Lightness
Chroma
Hue
OKLAB
0.2074 0 -0.01
0.20740-0.01LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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