Black Rock

#05042B

General Information about #05042B

The hexadecimal color #05042B, often referred to as Black Rock, is a very dark shade of blue-black. In the RGB color model, it is composed of 2% red, 2% green, and 17% blue. Its primary characteristic is its extremely low lightness value, contributing to its near-black appearance. This color is often associated with feelings of depth, mystery, and sophistication. Due to its low luminance, it is crucial to consider its context and surrounding colors to ensure readability and accessibility. It's predominantly used in design where a subdued, dark tone is desired, often as an accent rather than a primary color.

The hex color #05042B, also known as Black Rock, presents significant accessibility challenges, particularly in text-based applications. Its extremely low lightness value results in very poor contrast against typical light backgrounds, making it difficult for users, especially those with visual impairments, to read text or discern important interface elements. According to WCAG guidelines, sufficient contrast ratios are essential for accessibility. To improve accessibility, it is strongly recommended to pair #05042B with much lighter colors, such as white or very pale yellows, greens, or blues, to achieve a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Avoid using this color for critical interactive elements unless accompanied by clear visual cues and appropriate ARIA attributes.

Shades

Digital Color Formats

RGB
5 4 43
RGB5 4 43
Red
Green
Blue
HSL
241.54 82.98% 9.22%
241.5482.989.22HSL
Hue
Saturation
Lightness
HWB
241.54 1.57% 83.14%
241.541.5783.14HWB
Hue
Whiteness
Blackness
hex#05042B
rgb5 4 43
hsl241.54 82.98% 9.22%
cmyk88.37% 90.7% 0% 83.14%
hwb241.54 1.57% 83.14%
xyz0.54 0.29 2.31
CMYK
88.37% 90.7% 0% 83.14%
88.3790.7083.14CMYK
Cyan
Magenta
Yellow
Key
XYZ
0.54 0.29 2.31
0.540.292.31XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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