Black Rock

#040930

General Information about #040930

The hexadecimal color #040930, often referred to as "Black Rock", is a very dark shade of blue-black. It is composed of 1.57% red, 3.53% green, and 18.82% blue. In the RGB color space, its numerical values are R:4, G:9, B:48. This color has a hue of 225 degrees, a saturation of 85.7%, and a lightness of 10%. Perceptually, #040930 reads as nearly black due to its very low luminance value. Colors with low luminance, such as #040930, are often used as background colors to highlight lighter elements on top. This color is not part of the web-safe color palette and might undergo color adjustments on older displays.

The hex color #040930, a very dark, almost black shade, presents significant accessibility challenges, especially in web design. Its extremely low luminance means that text or interactive elements using this color as a background require very light foreground colors to ensure sufficient contrast. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text to comply with WCAG guidelines. Insufficient contrast can make content difficult or impossible to read for users with visual impairments, including those with low vision or color blindness. When using #040930, careful consideration must be given to color pairings and text sizes to avoid excluding users and ensure an inclusive design. Tools for checking color contrast are essential in this process.

Shades

Digital Color Formats

RGB
4 9 48
RGB4 9 48
Red
Green
Blue
HSL
233.18deg 84.62% 10.2%
233.1884.6210.2HSL
Hue
Saturation
Lightness
HWB
233.18deg 1.57% 81.18%
233.181.5781.18HWB
Hue
Whiteness
Blackness
hex#040930
rgb4 9 48
hsl233.18deg 84.62% 10.2%
cmyk91.67% 81.25% 0% 81.18%
hwb233.18deg 1.57% 81.18%
xyz-d650.01 0 0.03
oklch0.1691 0.0774 268.54
oklab0.1691 0 -0.08
CMYK
91.67% 81.25% 0% 81.18%
91.6781.25081.18CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1691 0.0774 268.54
0.16910.0774268.54LCH
Lightness
Chroma
Hue
OKLAB
0.1691 0 -0.08
0.16910-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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