Black Rock

#040730

General Information about #040730

The hex color code #040730 represents a very dark shade of blue-black, often referred to as "Black Rock." It is composed of 1.57% red, 2.75% green, and 18.82% blue. In the RGB color space, it is described as rgb(4, 7, 48). This color is characterized by its extremely low saturation and luminance, giving it a muted, almost imperceptible presence. Due to its darkness, it is often used to create a sense of depth, mystery, or sophistication. The color is rarely used as a primary color but more often as an accent or background. Its name, Black Rock, evokes a sense of natural solidity and strength. In CMYK, #040730 translates to 92% cyan, 85% magenta, 0% yellow, and 81% black.

The hex color #040730, also known as Black Rock, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance value of 0.002 means that text or interactive elements using this color as a background will require very light foreground colors to meet WCAG (Web Content Accessibility Guidelines) contrast requirements. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using lighter shades of gray or colors like white or very pale yellow would be necessary to ensure readability. Without sufficient contrast, users may struggle to distinguish text or interface elements, leading to a poor user experience. When incorporating #040730 into designs, careful consideration of color pairings and contrast ratios is crucial to ensure inclusivity and usability for all users.

Shades

Digital Color Formats

RGB
4 7 48
RGB4 7 48
Red
Green
Blue
HSL
235.91deg 84.62% 10.2%
235.9184.6210.2HSL
Hue
Saturation
Lightness
HWB
235.91deg 1.57% 81.18%
235.911.5781.18HWB
Hue
Whiteness
Blackness
hex#040730
rgb4 7 48
hsl235.91deg 84.62% 10.2%
cmyk91.67% 85.42% 0% 81.18%
hwb235.91deg 1.57% 81.18%
xyz-d650.01 0 0.03
oklch0.1644 0.0805 269.53
oklab0.1644 0 -0.08
CMYK
91.67% 85.42% 0% 81.18%
91.6785.42081.18CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1644 0.0805 269.53
0.16440.0805269.53LCH
Lightness
Chroma
Hue
OKLAB
0.1644 0 -0.08
0.16440-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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