Black Rock

#0A0331

General Information

The hexadecimal color code #0A0331, commonly referred to as Black Rock, belongs to the dark shade of blue-violet color family. In the RGB color model, it is composed of 3.92% red, 1.18% green, and 19.22% blue. When represented in the CMYK color model, it consists of 79.69% cyan, 93.83% magenta, 0% yellow, and 80.78% black. This combination results in a deep, saturated hue with a very low lightness value. The low lightness is the result of the small amount of red and green in comparison to the blue value. The color is not very common in everyday design because of its darkness.

The hex color #0A0331, also known as Black Rock, presents significant accessibility challenges, especially in web design. Its extremely low lightness value means that it offers very poor contrast against white text, violating WCAG guidelines for minimum contrast ratios. To ensure readability and usability for all users, including those with visual impairments, it's crucial to pair this color with much lighter shades. A white or very pale yellow would be more appropriate choices. Using online contrast checkers is highly recommended to verify compliance with accessibility standards. Furthermore, avoid using #0A0331 for essential interactive elements like buttons or links, as the lack of contrast can make them difficult to identify. The color can also be problematic for users with color blindness, making careful consideration of alternative color schemes essential to provide an inclusive user experience.

Shades

Digital Color Formats

RGB
10 3 49
RGB10 3 49
Red
Green
Blue
HSL
249.13deg 88.46% 10.2%
249.1388.4610.2HSL
Hue
Saturation
Lightness
HWB
249.13deg 1.18% 80.78%
249.131.1880.78HWB
Hue
Whiteness
Blackness
hex#0A0331
rgb10 3 49
hsl249.13deg 88.46% 10.2%
cmyk79.59% 93.88% 0% 80.78%
hwb249.13deg 1.18% 80.78%
xyz-d650.01 0 0.03
oklch0.1619 0.0866 279.55
oklab0.1619 0.01 -0.09
CMYK
79.59% 93.88% 0% 80.78%
79.5993.88080.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1619 0.0866 279.55
0.16190.0866279.55LCH
Lightness
Chroma
Hue
OKLAB
0.1619 0.01 -0.09
0.16190.01-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons