Vulcan

#15171F

General Information about #15171F

The hexadecimal color code #15171F represents a dark shade of blue-gray in the RGB color model. It is composed of 8.24% red, 9.02% green, and 12.16% blue. In the CMYK color model, it consists of 32.42% cyan, 25.81% magenta, 0% yellow, and 87.84% black. This color is often referred to as "Vulcan", evoking associations with sophistication, modernity, and a subtle understated elegance. Its muted nature makes it a versatile choice for various applications where a dark and refined tone is desired. The hexadecimal system provides a precise way to define and reproduce this color across different media and platforms. The color is mostly used in dark themed designs.

The hex color #15171F, also known as Vulcan, presents some accessibility challenges, primarily due to its low luminance. When used as a background color, sufficient contrast with foreground text is crucial to ensure readability for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using #15171F as a background requires very light text colors to meet these standards. Tools like contrast checkers can assist in verifying compliance. Consideration should also be given to users with color vision deficiencies, by providing redundant cues such as icons or text labels alongside color-coded elements. Meaning should never be conveyed by color alone. Careful selection of complementary colors is essential to enhance usability. Testing with different color vision deficiency simulators can help identify potential issues.

Shades

Digital Color Formats

RGB
21 23 31
RGB21 23 31
Red
Green
Blue
HSL
228deg 19.23% 10.2%
22819.2310.2HSL
Hue
Saturation
Lightness
HWB
228deg 8.24% 87.84%
2288.2487.84HWB
Hue
Whiteness
Blackness
hex#15171F
rgb21 23 31
hsl228deg 19.23% 10.2%
cmyk32.26% 25.81% 0% 87.84%
hwb228deg 8.24% 87.84%
xyz-d650.01 0.01 0.01
oklch0.2063 0.0163 273.93
oklab0.2063 0 -0.02
CMYK
32.26% 25.81% 0% 87.84%
32.2625.81087.84CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.01
0.010.010.01XYZ
X
Y
Z
OKLCH
0.2063 0.0163 273.93
0.20630.0163273.93LCH
Lightness
Chroma
Hue
OKLAB
0.2063 0 -0.02
0.20630-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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