Vulcan

#10171E

General Information about #10171E

The hexadecimal color code #10171E represents a very dark, muted shade of blue-gray. It is composed of 6.27% red, 9.02% green, and 11.76% blue. In the RGB color space, it translates to the values R:16, G:23, B:30. In the CMYK color space, its composition is 46.67% cyan, 23.33% magenta, 0% yellow, and 88.24% black. This color, often referred to as "Vulcan", evokes a sense of depth, mystery, and sophistication. Its low luminance makes it suitable for backgrounds where a subtle and understated presence is desired, or where the primary focus should be directed towards brighter elements. The hex code is commonly used in digital design, web development, and graphic arts to achieve a modern and sleek aesthetic. This color sits close to black on the color scale.

The color #10171E, also known as Vulcan, presents significant accessibility challenges due to its extremely low luminance. Its contrast ratio against a standard white background is critically low, failing to meet WCAG (Web Content Accessibility Guidelines) AAA standards for text and non-text contrast. This means that individuals with visual impairments, including those with low vision or color blindness, will likely struggle to distinguish text or graphical elements rendered in this color against a light background. To ensure accessibility, it is imperative to pair #10171E with much lighter colors that provide sufficient contrast. Designers and developers should use contrast checking tools to verify that the chosen color combinations meet accessibility standards. Consider using this color sparingly for purely decorative elements where visual perception is not critical for understanding content or functionality. Using it for crucial elements like text or buttons requires careful consideration and rigorous testing with diverse users.

Shades

Digital Color Formats

RGB
16 23 30
RGB16 23 30
Red
Green
Blue
HSL
210deg 30.43% 9.02%
21030.439.02HSL
Hue
Saturation
Lightness
HWB
210deg 6.27% 88.24%
2106.2788.24HWB
Hue
Whiteness
Blackness
hex#10171E
rgb16 23 30
hsl210deg 30.43% 9.02%
cmyk46.67% 23.33% 0% 88.24%
hwb210deg 6.27% 88.24%
xyz-d650.01 0.01 0.01
oklch0.2009 0.0177 248.76
oklab0.2009 -0.01 -0.02
CMYK
46.67% 23.33% 0% 88.24%
46.6723.33088.24CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.2009 0.0177 248.76
0.20090.0177248.76LCH
Lightness
Chroma
Hue
OKLAB
0.2009 -0.01 -0.02
0.2009-0.01-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons