Black Rock

#0A0A37

General Information about Black Rock

The hex color #0A0A37, also known as Black Rock, is a very dark shade of blue-purple. It is composed of 3.92% red, 3.92% green, and 21.57% blue. In the RGB color space, it has the values (10, 10, 55). This color is often associated with depth, mystery, and sophistication. Given its dark nature, it is not ideal for use as a primary text color, but it can be effective for backgrounds or accents when paired with lighter colors. The color evokes a sense of calm and can be used to create a feeling of formality. The color belongs to the dark blue specter.

The hex color #0A0A37, also known as Black Rock, presents certain accessibility challenges. Its low luminance value of approximately 1% means it offers very little contrast against a white background. 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 falls far short of these recommendations. Using Black Rock as a text color on a white background (or a background of similar lightness) is not advisable due to legibility issues. To improve accessibility, it should be paired with a much lighter color to ensure sufficient contrast. Also, avoid using this color for crucial UI elements without proper contrast as people with visual impairments could have difficulty to recognize the element.

Shades

Digital Color Formats

RGB
10 10 55
RGB10 10 55
Red
Green
Blue
HSL
240deg 69.23% 12.75%
24069.2312.75HSL
Hue
Saturation
Lightness
HWB
240deg 3.92% 78.43%
2403.9278.43HWB
Hue
Whiteness
Blackness
hex#0A0A37
rgb10 10 55
hsl240deg 69.23% 12.75%
cmyk81.82% 81.82% 0% 78.43%
hwb240deg 3.92% 78.43%
xyz-d650.01 0.01 0.04
oklch0.1849 0.0846 274.35
oklab0.1849 0.01 -0.08
CMYK
81.82% 81.82% 0% 78.43%
81.8281.82078.43CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.04
0.010.010.04XYZ
X
Y
Z
OKLCH
0.1849 0.0846 274.35
0.18490.0846274.35LCH
Lightness
Chroma
Hue
OKLAB
0.1849 0.01 -0.08
0.18490.01-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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