Black Rock

#040B30

General Information about #040B30

The hex color #040B30, also known as Black Rock, is a very dark shade of blue-black. It's composed of 1.57% red, 4.31% green, and 18.82% blue. In the RGB color model, it is represented as (4, 11, 48). This color falls into the range of very low luminance, giving it a deep, muted appearance. It is often associated with sophistication, mystery, and depth. Due to its high blue component, it can evoke feelings of calmness and tranquility. Black Rock is commonly used in designs aiming for a sleek, modern, or luxurious feel. It is a dark color that is frequently used in digital design. It is also suitable for print materials. It should not be used for text though.

The hex color #040B30, often referred to as Black Rock, presents significant accessibility challenges due to its extremely low luminance. As a very dark shade, it provides insufficient contrast when used as text against a white or light-colored background, making it difficult to read for individuals with visual impairments. According to WCAG guidelines, this color fails most contrast ratio tests for both normal and large text sizes. To ensure accessibility, it's crucial to pair #040B30 with very light colors, ideally white or near-white shades, to achieve an acceptable contrast ratio. Avoid using this color for essential information, interactive elements, or links without careful consideration of the contrast. Providing alternative high-contrast themes can also improve the user experience for those with visual sensitivities. Thorough testing with accessibility tools is recommended to validate the color's usability across various user needs.

Shades

Digital Color Formats

RGB
4 11 48
RGB4 11 48
Red
Green
Blue
HSL
230.45deg 84.62% 10.2%
230.4584.6210.2HSL
Hue
Saturation
Lightness
HWB
230.45deg 1.57% 81.18%
230.451.5781.18HWB
Hue
Whiteness
Blackness
hex#040B30
rgb4 11 48
hsl230.45deg 84.62% 10.2%
cmyk91.67% 77.08% 0% 81.18%
hwb230.45deg 1.57% 81.18%
xyz-d650.01 0 0.03
oklch0.1736 0.0744 267.44
oklab0.1736 0 -0.07
CMYK
91.67% 77.08% 0% 81.18%
91.6777.08081.18CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1736 0.0744 267.44
0.17360.0744267.44LCH
Lightness
Chroma
Hue
OKLAB
0.1736 0 -0.07
0.17360-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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