Vulcan

#0B171F

General Information about #0B171F

The hex color #0B171F, often referred to as "Vulcan", is a very dark, muted shade that resides in the realm of deep gray-blacks. It is composed of 4.31% red, 9.02% green, and 12.16% blue. In the RGB color space, its values are R:11, G:23, B:31. The CMYK representation is C:64.52%, M:25.81%, Y:0%, K:87.84%. This color is often associated with feelings of sophistication, mystery, and stability. Its hexadecimal nature makes it widely usable in digital contexts, while its subtle undertones lend themselves well to creating a calming and grounded visual experience. The color is perfect for dark-themed web pages.

The hex color #0B171F, also known as Vulcan, presents some accessibility challenges due to its low luminance. Its dark nature means that text rendered in this color requires careful consideration of contrast ratios to ensure readability, especially for users with visual impairments. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. Using a light color for text on a #0B171F background is crucial to meet these standards. Tools are available to check contrast ratios and help choose accessible color combinations. Designers and developers should prioritize accessibility testing with diverse user groups to validate the effectiveness of their color choices and ensure an inclusive user experience.

Shades

Digital Color Formats

RGB
11 23 31
RGB11 23 31
Red
Green
Blue
HSL
204deg 47.62% 8.24%
20447.628.24HSL
Hue
Saturation
Lightness
HWB
204deg 4.31% 87.84%
2044.3187.84HWB
Hue
Whiteness
Blackness
hex#0B171F
rgb11 23 31
hsl204deg 47.62% 8.24%
cmyk64.52% 25.81% 0% 87.84%
hwb204deg 4.31% 87.84%
xyz-d650.01 0.01 0.01
oklch0.1975 0.0236 238.81
oklab0.1975 -0.01 -0.02
CMYK
64.52% 25.81% 0% 87.84%
64.5225.81087.84CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.1975 0.0236 238.81
0.19750.0236238.81LCH
Lightness
Chroma
Hue
OKLAB
0.1975 -0.01 -0.02
0.1975-0.01-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons