Vulcan

#11171C

About the Color #11171C

The hexadecimal color code #11171C, often referred to as "Vulcan," is a dark, muted shade of blue-gray. In the RGB color model, it is composed of 6.67% red, 9.02% green, and 11.0% blue. This color is commonly associated with sophistication, formality, and a sense of calm or mystery. Due to its low brightness and saturation, it is often used as a background color or in combination with brighter, contrasting colors to create visual interest. In web design, it can be a suitable choice for creating dark themes or emphasizing specific elements while maintaining a professional and elegant aesthetic. It has a subtle and understated presence that can be both versatile and impactful in various design contexts.

The color #11171C, also known as Vulcan, presents significant accessibility challenges due to its low luminance. With a dark shade, it offers very little contrast against typical light backgrounds, making it difficult for individuals with visual impairments to read text or discern elements. Web developers should avoid using #11171C for text or important UI components unless paired with a very light color to ensure sufficient contrast, ideally aiming for a contrast ratio that meets WCAG guidelines (4.5:1 for normal text and 3:1 for large text). Using tools to check color contrast ratios is highly recommended. Additionally, providing alternative visual cues such as icons or patterns can help users who struggle to differentiate colors. Thoughtful consideration of color choices helps improve the user experience for everyone.

Shades

Digital Color Formats

RGB
17 23 28
RGB17 23 28
Red
Green
Blue
HSL
207.27deg 24.44% 8.82%
207.2724.448.82HSL
Hue
Saturation
Lightness
HWB
207.27deg 6.67% 89.02%
207.276.6789.02HWB
Hue
Whiteness
Blackness
hex#11171C
rgb17 23 28
hsl207.27deg 24.44% 8.82%
cmyk39.29% 17.86% 0% 89.02%
hwb207.27deg 6.67% 89.02%
xyz-d650.01 0.01 0.01
oklch0.2008 0.0136 243.68
oklab0.2008 -0.01 -0.01
CMYK
39.29% 17.86% 0% 89.02%
39.2917.86089.02CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.2008 0.0136 243.68
0.20080.0136243.68LCH
Lightness
Chroma
Hue
OKLAB
0.2008 -0.01 -0.01
0.2008-0.01-0.01LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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