Vulcan

#15151F

General Information about #15151F (Vulcan)

The hexadecimal color code #15151F represents a dark, muted shade of blue-gray, often referred to as 'Vulcan.' It is composed of 8.24% red, 8.24% green, and 12.16% blue. In the RGB color model, this translates to R:21, G:21, B:31. The color has a hue angle of 240 degrees, a saturation of 19.4%, and a lightness of 10%. Vulcan is often associated with qualities such as sophistication, mystery, and stability. It is commonly used in designs where a sense of understated elegance is desired. Due to its dark nature, it requires careful consideration of contrast when used with text or other elements to ensure readability and accessibility.

The color #15151F, also known as Vulcan, presents significant accessibility challenges due to its very low luminance. Its dark nature results in poor contrast against typical light backgrounds, making it difficult for users with visual impairments to perceive text or elements using this color. According to WCAG guidelines, it would fail most contrast ratio tests. To improve accessibility, it is crucial to pair it with very light colors like white or very pale yellow. Even then, careful consideration is needed to ensure sufficient contrast. Using larger font sizes or adding visual cues like borders or icons can also help mitigate readability issues. Designers and developers must prioritize accessibility by carefully evaluating the color combinations and providing alternative high-contrast themes when necessary. Tools like contrast checkers are essential for verifying compliance with accessibility standards.

Shades

Digital Color Formats

RGB
21 21 31
RGB21 21 31
Red
Green
Blue
HSL
240deg 19.23% 10.2%
24019.2310.2HSL
Hue
Saturation
Lightness
HWB
240deg 8.24% 87.84%
2408.2487.84HWB
Hue
Whiteness
Blackness
hex#15151F
rgb21 21 31
hsl240deg 19.23% 10.2%
cmyk32.26% 32.26% 0% 87.84%
hwb240deg 8.24% 87.84%
xyz-d650.01 0.01 0.01
oklch0.2007 0.0199 284.46
oklab0.2007 0 -0.02
CMYK
32.26% 32.26% 0% 87.84%
32.2632.26087.84CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.2007 0.0199 284.46
0.20070.0199284.46LCH
Lightness
Chroma
Hue
OKLAB
0.2007 0 -0.02
0.20070-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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