Black Rock

#170331

General Information About Black Rock (#170331)

The color #170331, often referred to as "Black Rock," is a very dark shade of purple, almost black. It is composed of 9.02% red, 1.18% green, and 19.22% blue. In the RGB color space, it is close to black but with a notable blue undertone. Its CMYK values are 0% cyan, 93.85% magenta, 0% yellow, and 80.78% black. This color is frequently associated with sophistication and mystery, making it suitable for designs that aim to evoke a sense of elegance and depth. Due to its darkness, it is best used as a background or accent color, paired with lighter colors for readability and visual balance. It is not the optimal choice for text or small details.

The hex color #170331, also known as Black Rock, presents significant accessibility challenges due to its very low luminance. With such a dark hue, it becomes imperative to use extremely light text colors to ensure sufficient contrast for readability. A recommended contrast ratio for WCAG compliance is at least 4.5:1 for normal text and 3:1 for large text. When using #170331 as a background, it's crucial to avoid colors that are also dark, as this would render the text illegible for many users, especially those with visual impairments. Designers should meticulously test the color combinations to guarantee accessibility for a broad audience, potentially using tools that assess color contrast ratios. Furthermore, avoid using this color for essential interactive elements without a clear visual indicator.

Shades

Digital Color Formats

RGB
23 3 49
RGB23 3 49
Red
Green
Blue
HSL
266.09deg 88.46% 10.2%
266.0988.4610.2HSL
Hue
Saturation
Lightness
HWB
266.09deg 1.18% 80.78%
266.091.1880.78HWB
Hue
Whiteness
Blackness
hex#170331
rgb23 3 49
hsl266.09deg 88.46% 10.2%
cmyk53.06% 93.88% 0% 80.78%
hwb266.09deg 1.18% 80.78%
xyz-d650.01 0 0.03
oklch0.1783 0.0859 297.5
oklab0.1783 0.04 -0.08
CMYK
53.06% 93.88% 0% 80.78%
53.0693.88080.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1783 0.0859 297.5
0.17830.0859297.5LCH
Lightness
Chroma
Hue
OKLAB
0.1783 0.04 -0.08
0.17830.04-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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