Black Rock

#150034

General Information about Black Rock

The hexadecimal color code #150034, also known as Black Rock, is a dark, desaturated shade of violet. It's composed of 8.24% red, 0% green, and 20.39% blue. In the RGB color space, it has values of R:21, G:0, B:52. In the CMYK color space, it is composed of C:60%, M:100%, Y:0%, K:79%. Its angle in the HSL cylinder is 257 degrees, its saturation is 100%, and its lightness is 10%. The color is most often associated with sophistication, mystery, and elegance. Due to its dark nature, Black Rock is often used as a background color, particularly in web design and graphic arts, to create a dramatic effect. It's also found in branding to convey a sense of luxury or exclusivity. When using this color, ensure that sufficient contrast is provided for readability, especially when used with text.

The hex color #150034, also known as Black Rock, presents significant accessibility challenges, particularly in text-based applications. Its very low lightness value (close to black) means that it requires extremely light text colors to achieve sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Using #150034 as a background color necessitates careful selection of foreground colors to meet these standards. White or very light shades of yellow or green are often the best choices. However, even with these colors, designers should test the contrast ratio using accessibility tools to ensure compliance. Furthermore, avoid using #150034 for interactive elements like buttons or links without clear visual cues and sufficient contrast, as users with low vision may struggle to identify them. Considering alternative, lighter shades can improve accessibility without drastically altering the intended aesthetic.

Shades

Digital Color Formats

RGB
21 0 52
RGB21 0 52
Red
Green
Blue
HSL
264.23deg 100% 10.2%
264.2310010.2HSL
Hue
Saturation
Lightness
HWB
264.23deg 0% 79.61%
264.23079.61HWB
Hue
Whiteness
Blackness
hex#150034
rgb21 0 52
hsl264.23deg 100% 10.2%
cmyk59.62% 100% 0% 79.61%
hwb264.23deg 0% 79.61%
xyz-d650.01 0 0.03
oklch0.1727 0.0953 294.17
oklab0.1727 0.04 -0.09
CMYK
59.62% 100% 0% 79.61%
59.62100079.61CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1727 0.0953 294.17
0.17270.0953294.17LCH
Lightness
Chroma
Hue
OKLAB
0.1727 0.04 -0.09
0.17270.04-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons