Vulcan

#18191C

General Information about Vulcan (#18191C)

The hexadecimal color #18191C, often referred to as Vulcan, is a very dark, desaturated shade of gray. It belongs to the family of near-black colors and possesses a muted, understated quality. In the RGB color model, #18191C is composed of 9.41% red, 9.8% green, and 11% blue. Its primary characteristic is its low brightness value, making it suitable for applications where a subtle, non-intrusive background or accent color is desired. This color is frequently employed in user interfaces, graphic design, and web development to create a sophisticated and modern look. Its neutral tone allows it to pair well with a wide range of colors, offering versatility in design projects.

The color #18191C, also known as Vulcan, presents certain accessibility challenges, particularly concerning contrast. When used as a background color, it necessitates very light text to ensure readability, meeting WCAG (Web Content Accessibility Guidelines) standards. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. In user interface design, avoid using #18191C for crucial interactive elements without careful consideration of the color pairings. For instance, buttons and links should have sufficient contrast against both the background and the text color. Moreover, individuals with low vision or color blindness may struggle to distinguish elements with subtle color differences against a #18191C background. Therefore, incorporating secondary visual cues like icons or underlines is advisable to enhance usability for all users. Thorough accessibility testing is crucial to validate the effectiveness of any design incorporating this dark hue.

Shades

Digital Color Formats

RGB
24 25 28
RGB24 25 28
Red
Green
Blue
HSL
225deg 7.69% 10.2%
2257.6910.2HSL
Hue
Saturation
Lightness
HWB
225deg 9.41% 89.02%
2259.4189.02HWB
Hue
Whiteness
Blackness
hex#18191C
rgb24 25 28
hsl225deg 7.69% 10.2%
cmyk14.29% 10.71% 0% 89.02%
hwb225deg 9.41% 89.02%
xyz-d650.01 0.01 0.01
oklch0.2136 0.0061 271.13
oklab0.2136 0 -0.01
CMYK
14.29% 10.71% 0% 89.02%
14.2910.71089.02CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.2136 0.0061 271.13
0.21360.0061271.13LCH
Lightness
Chroma
Hue
OKLAB
0.2136 0 -0.01
0.21360-0.01LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons