Vulcan

#131621

General Information about Vulcan (#131621)

The color #131621, also known as Vulcan, is a very dark, desaturated shade of blue-gray. It falls within the range of what is typically considered 'near-black' colors. Named 'Vulcan,' it suggests a connection to the Roman god of fire and metalworking, perhaps alluding to the color's association with industry or the deep, dark interiors of a forge. In the RGB color model, #131621 is composed of 7.45% red, 8.63% green, and 12.94% blue. It has a very low luminance value, making it appear almost entirely black to the human eye. This color is often used to convey a sense of mystery, sophistication, or industrial strength. It's more often seen in backgrounds where you want to have something darker but not pure black.

The hex color #131621, also known as Vulcan, presents significant accessibility challenges, especially for text-based content. Its very low luminance value of 0.009 makes it difficult to achieve sufficient contrast against lighter backgrounds. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text to ensure readability for users with moderate visual impairments. Vulcan falls far short of these requirements when paired with most common background colors, potentially rendering text illegible for a considerable portion of the user base. To improve accessibility, consider using significantly lighter text colors, such as whites or very light grays, or using Vulcan sparingly as a background color with appropriately contrasting foreground elements. Tools like contrast checkers can help evaluate and adjust color combinations to meet accessibility standards.

Shades

Digital Color Formats

RGB
19 22 33
RGB19 22 33
Red
Green
Blue
HSL
227.14deg 26.92% 10.2%
227.1426.9210.2HSL
Hue
Saturation
Lightness
HWB
227.14deg 7.45% 87.06%
227.147.4587.06HWB
Hue
Whiteness
Blackness
hex#131621
rgb19 22 33
hsl227.14deg 26.92% 10.2%
cmyk42.42% 33.33% 0% 87.06%
hwb227.14deg 7.45% 87.06%
xyz-d650.01 0.01 0.02
oklch0.2025 0.0226 272.47
oklab0.2025 0 -0.02
CMYK
42.42% 33.33% 0% 87.06%
42.4233.33087.06CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.02
0.010.010.02XYZ
X
Y
Z
OKLCH
0.2025 0.0226 272.47
0.20250.0226272.47LCH
Lightness
Chroma
Hue
OKLAB
0.2025 0 -0.02
0.20250-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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