Vulcan

#15171A

General Information About #15171A

The hexadecimal color code #15171A, also known as Vulcan, represents a very dark shade of gray, nearing black. It is composed of 8.24% red, 9.02% green, and 10.2% blue. In the RGB color space, it's often used to convey sophistication, mystery, or a modern, minimalistic aesthetic. This color is frequently utilized in digital design for backgrounds, user interfaces, and text elements, though careful consideration must be given to contrast ratios to ensure readability and accessibility. The color is suitable for creating a dark-themed aesthetic but should be paired with lighter elements to prevent visual fatigue.

The color #15171A, also known as Vulcan, presents significant accessibility challenges. Its very dark hue results in a low contrast ratio against standard white text, making it difficult for users with visual impairments to read content. According to WCAG guidelines, sufficient contrast is crucial for readability. To improve accessibility, consider using lighter text colors such as white or very light grays to ensure a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Alternatively, the background color could be lightened to provide better contrast with the existing text. It's also important to avoid using this color for critical UI elements or interactive components without careful consideration of contrast. Providing alternative styling options can also help improve accessibility for users with different visual preferences.

Shades

Digital Color Formats

RGB
21 23 26
RGB21 23 26
Red
Green
Blue
HSL
216deg 10.64% 9.22%
21610.649.22HSL
Hue
Saturation
Lightness
HWB
216deg 8.24% 89.8%
2168.2489.8HWB
Hue
Whiteness
Blackness
hex#15171A
rgb21 23 26
hsl216deg 10.64% 9.22%
cmyk19.23% 11.54% 0% 89.8%
hwb216deg 8.24% 89.8%
xyz-d650.01 0.01 0.01
oklch0.2038 0.0068 258.42
oklab0.2038 0 -0.01
CMYK
19.23% 11.54% 0% 89.8%
19.2311.54089.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.2038 0.0068 258.42
0.20380.0068258.42LCH
Lightness
Chroma
Hue
OKLAB
0.2038 0 -0.01
0.20380-0.01LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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