Black Rock

#13003A

General Information about Black Rock

The hex color #13003A, often referred to as 'Black Rock,' is a very dark shade of purple, nearly approaching black. It is composed of 7.5% red, 0% green, and 22.7% blue. In the RGB color space, this translates to R:19, G:0, B:58. The CMYK representation is C:67, M:100, Y:0, K:77. The hue angle is 257.9 degrees, saturation is 100%, and lightness is 11.4%. Because of its high blue content, the color has a cool, deep feel. It is often associated with mystery, elegance, and sophistication. This color is frequently found in contexts aiming to evoke a sense of depth, exclusivity, or understated luxury.

The hex color #13003A, also known as Black Rock, presents significant accessibility challenges due to its very low luminance. Its dark nature results in extremely poor contrast when paired with standard text colors like white or even light grays. According to WCAG guidelines, it would fail most contrast ratio tests, making it difficult for users with visual impairments to read text or discern important interface elements. To improve accessibility, it's crucial to use a much lighter foreground color that provides a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Alternatively, consider using #13003A sparingly, primarily for decorative elements where legibility isn't critical. When it is used, test the color combinations thoroughly with accessibility tools to ensure compliance and optimal user experience for all users, including those with low vision or color blindness.

Shades

Digital Color Formats

RGB
19 0 58
RGB19 0 58
Red
Green
Blue
HSL
259.66deg 100% 11.37%
259.6610011.37HSL
Hue
Saturation
Lightness
HWB
259.66deg 0% 77.25%
259.66077.25HWB
Hue
Whiteness
Blackness
hex#13003A
rgb19 0 58
hsl259.66deg 100% 11.37%
cmyk67.24% 100% 0% 77.25%
hwb259.66deg 0% 77.25%
xyz-d650.01 0 0.04
oklch0.178 0.1022 287.79
oklab0.178 0.03 -0.1
CMYK
67.24% 100% 0% 77.25%
67.24100077.25CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.04
0.0100.04XYZ
X
Y
Z
OKLCH
0.178 0.1022 287.79
0.1780.1022287.79LCH
Lightness
Chroma
Hue
OKLAB
0.178 0.03 -0.1
0.1780.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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