Black Rock

#0A0A2B

General Information about #0A0A2B

The hexadecimal color code #0A0A2B, also known as 'Black Rock,' is a dark shade of blue, almost appearing black. It is composed of 3.92% red, 3.92% green, and 17.25% blue. In the RGB color model, #0A0A2B consists of 10 red, 10 green, and 43 blue. This color is commonly used in designs seeking a somber, sophisticated, or mysterious aesthetic. Due to its dark nature, it is essential to pair it with lighter colors to ensure readability and visual balance. Its hex triplet is 0A0A2B and in the CMYK model it is 77, 77, 0, 83. In the HSL color space, it has a hue of 240 degrees, a saturation of 83.3% and a lightness of 10.6%.

The hex color #0A0A2B, a dark shade of blue, presents some accessibility challenges, particularly concerning color contrast. When used as a background color, it necessitates very light text to ensure readability. According to WCAG guidelines, sufficient contrast is crucial for users with visual impairments. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Therefore, pairing #0A0A2B with colors like white or very light yellow is essential. Conversely, using darker colors like black or gray for text on a #0A0A2B background would render the content illegible. Designers should leverage online contrast checkers to verify compliance with accessibility standards, ensuring that their designs are inclusive and accessible to all users, regardless of their visual abilities. Moreover, consider providing alternative color themes or options for users to customize the display according to their preferences.

Shades

Digital Color Formats

RGB
10 10 43
RGB10 10 43
Red
Green
Blue
HSL
240deg 62.26% 10.39%
24062.2610.39HSL
Hue
Saturation
Lightness
HWB
240deg 3.92% 83.14%
2403.9283.14HWB
Hue
Whiteness
Blackness
hex#0A0A2B
rgb10 10 43
hsl240deg 62.26% 10.39%
cmyk76.74% 76.74% 0% 83.14%
hwb240deg 3.92% 83.14%
xyz-d650.01 0 0.02
oklch0.1711 0.0651 277.04
oklab0.1711 0.01 -0.06
CMYK
76.74% 76.74% 0% 83.14%
76.7476.74083.14CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.02
0.0100.02XYZ
X
Y
Z
OKLCH
0.1711 0.0651 277.04
0.17110.0651277.04LCH
Lightness
Chroma
Hue
OKLAB
0.1711 0.01 -0.06
0.17110.01-0.06LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons