Black Rock

#0A0428

General Information about #0A0428

The hexadecimal color code #0A0428 represents a very dark shade of purple, often referred to as Black Rock. In the RGB color model, it is composed of 3.92% red, 1.57% green, and 15.69% blue. This color sits towards the darker end of the spectrum, possessing a very low luminance value. Due to its high concentration of blue, it is perceived as a cool and deep tone. Colors similar to #0A0428 are frequently associated with mystery, sophistication, and the night sky. Its usage is often seen where a sense of depth, elegance, or a futuristic aesthetic is desired. It is important to use this color judiciously, considering its impact on readability and visual contrast.

The hex color #0A0428, also known as Black Rock, presents significant accessibility challenges due to its extremely low luminance. Its very dark nature results in poor contrast against almost any lighter background, making it difficult for individuals with visual impairments to read text or distinguish elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Black Rock is unlikely to meet these criteria with most common background colors. To improve accessibility, it is highly advised to use much lighter foreground colors or consider alternative, lighter background colors that provide sufficient contrast. Tools like contrast checkers can help determine the contrast ratio and ensure compliance with accessibility standards.

Shades

Digital Color Formats

RGB
10 4 40
RGB10 4 40
Red
Green
Blue
HSL
250deg 81.82% 8.63%
25081.828.63HSL
Hue
Saturation
Lightness
HWB
250deg 1.57% 84.31%
2501.5784.31HWB
Hue
Whiteness
Blackness
hex#0A0428
rgb10 4 40
hsl250deg 81.82% 8.63%
cmyk75% 90% 0% 84.31%
hwb250deg 1.57% 84.31%
xyz-d650.01 0 0.02
oklch0.1526 0.0714 283.27
oklab0.1526 0.02 -0.07
CMYK
75% 90% 0% 84.31%
7590084.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.02
0.0100.02XYZ
X
Y
Z
OKLCH
0.1526 0.0714 283.27
0.15260.0714283.27LCH
Lightness
Chroma
Hue
OKLAB
0.1526 0.02 -0.07
0.15260.02-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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