Black Rock

#110B2A

General Information about #110B2A

The hexadecimal color code #110B2A, often referred to as 'Black Rock', is a very dark shade of blue-purple. It is composed of 6.67% red, 4.31% green, and 16.47% blue. In the RGB color space, it can be represented as RGB(17, 11, 42). In the CMYK color model, it is composed of 59.52% cyan, 73.81% magenta, 0% yellow, and 83.53% black. Its dark nature positions it within the realm of deep, subdued tones, making it suitable for applications where a sense of sophistication and depth is desired. Colors similar to Black Rock include other dark shades of blue, purple, and gray. Given its high black content in CMYK, printing this color effectively may require careful calibration to avoid overly muddy results. The sRGB value is 17, 11, and 42.

The color #110B2A, also known as Black Rock, presents significant accessibility challenges, especially in web design. Its very dark nature results in extremely low contrast against standard light backgrounds, like white (#FFFFFF). This poses a major problem for users with visual impairments, including those with low vision or color blindness, as distinguishing foreground elements from the background becomes difficult or impossible. Adhering to WCAG (Web Content Accessibility Guidelines) is crucial. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Black Rock falls far short of these recommendations when paired with light backgrounds. To improve accessibility, consider using Black Rock sparingly, perhaps as a subtle accent color, and always pair it with very light text (almost white) or very light backgrounds. Assess the contrast using online contrast checkers. Furthermore, provide alternative styling options for users who need higher contrast. It's better to use lighter shades of gray or other darker shades of blue or purple as a background, as they provide more contrast.

Shades

Digital Color Formats

RGB
17 11 42
RGB17 11 42
Red
Green
Blue
HSL
251.61deg 58.49% 10.39%
251.6158.4910.39HSL
Hue
Saturation
Lightness
HWB
251.61deg 4.31% 83.53%
251.614.3183.53HWB
Hue
Whiteness
Blackness
hex#110B2A
rgb17 11 42
hsl251.61deg 58.49% 10.39%
cmyk59.52% 73.81% 0% 83.53%
hwb251.61deg 4.31% 83.53%
xyz-d650.01 0.01 0.02
oklch0.1795 0.0604 287.62
oklab0.1795 0.02 -0.06
CMYK
59.52% 73.81% 0% 83.53%
59.5273.81083.53CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.02
0.010.010.02XYZ
X
Y
Z
OKLCH
0.1795 0.0604 287.62
0.17950.0604287.62LCH
Lightness
Chroma
Hue
OKLAB
0.1795 0.02 -0.06
0.17950.02-0.06LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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