Black Rock

#0A0B31

General Information about #0A0B31

The hex color #0A0B31, often referred to as "Black Rock", is a very dark, near-black color with a slight hint of blue. In the RGB color model, it is composed of 3.92% red, 4.31% green, and 19.22% blue. The CMYK representation is 79.64% cyan, 77.78% magenta, 0% yellow, and 80.78% black. This color falls into the range of deep indigo and dark slate shades. Because of its darkness, it is often used as a background color or in situations where a subtle, understated color is desired. It evokes feelings of sophistication, mystery, and depth. When using #0A0B31, it's important to pair it with lighter colors to ensure readability and visual balance.

The hex color #0A0B31, also known as Black Rock, presents unique accessibility challenges. Its extremely dark nature means that it requires very light text colors to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using #0A0B31 as a background, careful consideration must be given to the foreground text color to meet these requirements. White (#FFFFFF) or very light shades of gray are typically necessary. Also, avoid using #0A0B31 for elements that rely solely on color to convey meaning, such as links or important status indicators, without providing alternative cues like text labels or icons. Ensure that interactive elements have sufficient visual contrast when focused or hovered to assist users with visual impairments.

Shades

Digital Color Formats

RGB
10 11 49
RGB10 11 49
Red
Green
Blue
HSL
238.46deg 66.1% 11.57%
238.4666.111.57HSL
Hue
Saturation
Lightness
HWB
238.46deg 3.92% 80.78%
238.463.9280.78HWB
Hue
Whiteness
Blackness
hex#0A0B31
rgb10 11 49
hsl238.46deg 66.1% 11.57%
cmyk79.59% 77.55% 0% 80.78%
hwb238.46deg 3.92% 80.78%
xyz-d650.01 0.01 0.03
oklch0.1799 0.0736 275
oklab0.1799 0.01 -0.07
CMYK
79.59% 77.55% 0% 80.78%
79.5977.55080.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.03
0.010.010.03XYZ
X
Y
Z
OKLCH
0.1799 0.0736 275
0.17990.0736275LCH
Lightness
Chroma
Hue
OKLAB
0.1799 0.01 -0.07
0.17990.01-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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