Black Rock

#040831

General Information about Black Rock

The hexadecimal color code #040831, also known as Black Rock, represents a very dark shade of blue. It is composed of 1.57% red, 3.14% green, and 19.22% blue. In the RGB color model, this translates to R:4, G:8, B:49. The HSL (hue, saturation, lightness) values are H:230.4 degrees, S:88.9%, L:10.4%. Black Rock is often associated with feelings of sophistication, mystery, and depth. Its low lightness value makes it suitable for creating a sense of drama or elegance in design projects. The color is part of the blue color family, known for its calming and trustworthy associations.

The color #040831, a very dark bluish-black, poses significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance value means that text or interactive elements rendered in this color will require very light foreground colors to meet WCAG contrast ratio guidelines. A contrast ratio of at least 4.5:1 is needed for normal text and 3:1 for large text against the background. Using lighter shades of gray, white, or vibrant colors like yellow or cyan as foregrounds would be essential. Designers should also provide options for users to adjust color schemes, ensuring readability and usability for everyone. Additionally, avoid using this color for crucial visual cues without accompanying textual or symbolic indicators.

Shades

Digital Color Formats

RGB
4 8 49
RGB4 8 49
Red
Green
Blue
HSL
234.67deg 84.91% 10.39%
234.6784.9110.39HSL
Hue
Saturation
Lightness
HWB
234.67deg 1.57% 80.78%
234.671.5780.78HWB
Hue
Whiteness
Blackness
hex#040831
rgb4 8 49
hsl234.67deg 84.91% 10.39%
cmyk91.84% 83.67% 0% 80.78%
hwb234.67deg 1.57% 80.78%
xyz-d650.01 0 0.03
oklch0.1681 0.0805 268.98
oklab0.1681 0 -0.08
CMYK
91.84% 83.67% 0% 80.78%
91.8483.67080.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1681 0.0805 268.98
0.16810.0805268.98LCH
Lightness
Chroma
Hue
OKLAB
0.1681 0 -0.08
0.16810-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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