Black Rock

#0A0133

General Information about Black Rock (#0A0133)

The hex color #0A0133, also known as Black Rock, is a very dark shade of blue, almost appearing black. It belongs to the family of blue colors, but its low saturation and value make it lean towards the darker end of the spectrum. In the RGB color model, it is composed of 3.92% red, 0.39% green, and 20% blue. The CMYK representation is 91% cyan, 98% magenta, 0% yellow, and 80% black. This color evokes feelings of sophistication, mystery, and depth. Because of its darkness, it is often associated with elegance and formality. Its use in design requires careful consideration, especially regarding contrast and accessibility, to ensure readability and a positive user experience. The human eye perceives this color more like a neutral color.

The hex color #0A0133, also known as Black Rock, presents significant accessibility challenges, particularly in web design. Its extremely low luminance results in very poor contrast against white or light backgrounds, making text or graphical elements nearly illegible for users with normal vision. This issue is greatly amplified for individuals with visual impairments, such as low vision or color blindness. Therefore, using #0A0133 as a primary text or interactive element color is strongly discouraged. To ensure accessibility, it is crucial to pair this color with very light hues to achieve a contrast ratio that meets WCAG guidelines (at least 4.5:1 for normal text and 3:1 for large text). Consider using accessibility evaluation tools to check contrast ratios and simulate different visual impairments to thoroughly assess the user experience. Alternatives include using #0A0133 sparingly, like in decorative elements, or as a dark overlay on brighter images, ensuring sufficient contrast is maintained.

Shades

Digital Color Formats

RGB
10 1 51
RGB10 1 51
Red
Green
Blue
HSL
250.8deg 96.15% 10.2%
250.896.1510.2HSL
Hue
Saturation
Lightness
HWB
250.8deg 0.39% 80%
250.80.3980HWB
Hue
Whiteness
Blackness
hex#0A0133
rgb10 1 51
hsl250.8deg 96.15% 10.2%
cmyk80.39% 98.04% 0% 80%
hwb250.8deg 0.39% 80%
xyz-d650.01 0 0.03
oklch0.1597 0.0931 279.63
oklab0.1597 0.02 -0.09
CMYK
80.39% 98.04% 0% 80%
80.3998.04080CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1597 0.0931 279.63
0.15970.0931279.63LCH
Lightness
Chroma
Hue
OKLAB
0.1597 0.02 -0.09
0.15970.02-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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