Vulcan

#131518

General Information

#131518, also known as Vulcan, is a very dark, almost black, shade of gray. It resides within the family of near-black colors, characterized by its low luminance and saturation. This color evokes a sense of sophistication, mystery, and modernity. Its primary use cases include backgrounds for websites, dark-themed interfaces, and accents in designs aiming for a sleek and minimalist aesthetic. Due to its darkness, it's crucial to use it carefully in conjunction with lighter colors to ensure legibility and contrast. Understanding its properties and how it interacts with other colors is essential for effective and visually appealing design.

The hex color #131518, also known as Vulcan, presents significant accessibility challenges, especially in text-based applications. Its extremely low luminance results in very poor contrast against common background colors like white. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. #131518 falls far short of these recommendations when paired with lighter colors, potentially making content illegible for users with visual impairments. To improve accessibility, it is advisable to use #131518 sparingly, and only with very light text colors, ensuring that sufficient contrast is provided. Additionally, consider providing alternative color schemes or a user-adjustable contrast setting to accommodate a wider range of visual needs. Avoid using this color for critical information or interactive elements without careful consideration of its impact on usability.

Shades

Digital Color Formats

RGB
19 21 24
RGB19 21 24
Red
Green
Blue
HSL
216deg 11.63% 8.43%
21611.638.43HSL
Hue
Saturation
Lightness
HWB
216deg 7.45% 90.59%
2167.4590.59HWB
Hue
Whiteness
Blackness
hex#131518
rgb19 21 24
hsl216deg 11.63% 8.43%
cmyk20.83% 12.5% 0% 90.59%
hwb216deg 7.45% 90.59%
xyz-d650.01 0.01 0.01
oklch0.1949 0.0068 258.42
oklab0.1949 0 -0.01
CMYK
20.83% 12.5% 0% 90.59%
20.8312.5090.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.1949 0.0068 258.42
0.19490.0068258.42LCH
Lightness
Chroma
Hue
OKLAB
0.1949 0 -0.01
0.19490-0.01LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons