Black Rock

#1C0133

General Information about #1C0133

The hex color #1C0133, also known as Black Rock, is a deep, dark shade of purple with a very low luminance value. It belongs to the family of purple colors, exhibiting a blend of blue and red hues, but its darkness subdues the vibrancy often associated with purples. In the RGB color model, #1C0133 consists of 11% red, 0.4% green, and 20% blue. Due to its high blue component, it leans toward the cooler side of the color spectrum. Colors like this are often associated with sophistication, mystery, and introspection. Its hexadecimal format makes it easily usable in digital design and web development, however, the low brightness of the color requires caution in usage to ensure readability and accessibility. This color creates a sense of depth and works well as an accent or background color, especially in contexts where a subtle, subdued tone is desired.

The hex color #1C0133, often referred to as Black Rock, presents significant accessibility challenges, especially in text-based contexts. Its extremely low luminance value of just 0.7% means that text rendered in this color against a white or light-colored background would have a very poor contrast ratio. According to WCAG (Web Content Accessibility Guidelines), a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text to meet AA compliance. #1C0133 falls far short of these requirements. Consequently, it is crucial to avoid using this color for text without ensuring an adequately light foreground color is used to provide sufficient contrast. For decorative elements or non-textual content, the contrast requirements are less stringent, but care should still be taken to ensure sufficient visibility and avoid potential usability issues for users with visual impairments. Thorough testing with accessibility evaluation tools is essential when considering this color in user interfaces.

Shades

Digital Color Formats

RGB
28 1 51
RGB28 1 51
Red
Green
Blue
HSL
272.4deg 96.15% 10.2%
272.496.1510.2HSL
Hue
Saturation
Lightness
HWB
272.4deg 0.39% 80%
272.40.3980HWB
Hue
Whiteness
Blackness
hex#1C0133
rgb28 1 51
hsl272.4deg 96.15% 10.2%
cmyk45.1% 98.04% 0% 80%
hwb272.4deg 0.39% 80%
xyz-d650.01 0.01 0.03
oklch0.1844 0.0932 303.56
oklab0.1844 0.05 -0.08
CMYK
45.1% 98.04% 0% 80%
45.198.04080CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.03
0.010.010.03XYZ
X
Y
Z
OKLCH
0.1844 0.0932 303.56
0.18440.0932303.56LCH
Lightness
Chroma
Hue
OKLAB
0.1844 0.05 -0.08
0.18440.05-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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