Black Rock

#1B0133

General Information about #1B0133

#1B0133, also known as Black Rock, is a very dark shade of purple, almost appearing black. It consists of 10.6% red, 0.4% green, and 20% blue. In the RGB color space, it is created by mixing these three primary colors in specific proportions. Its hexadecimal representation, #1B0133, is a standard way to define it in digital applications. This color is often associated with mystery, sophistication, and depth. It’s a color that can evoke feelings of calmness and introspection. Due to its dark nature, it is not suitable as a primary color for applications that require high readability or accessibility.

The hex color #1B0133, a very dark shade of purple, presents significant accessibility challenges, especially in web design. Its extremely low luminance makes it difficult to achieve sufficient contrast against lighter text or background colors. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Using #1B0133 for text requires a very light color for readability, and even then, careful testing is essential to ensure users with visual impairments can perceive the content. When using this color as a background, similarly light foreground elements are needed. However, be cautious to avoid combinations that cause eye strain. Providing alternative high-contrast themes can improve accessibility for all users. Consider using contrast checking tools to validate the contrast ratio of all text and interactive elements against the background when using this color.

Shades

Digital Color Formats

RGB
27 1 51
RGB27 1 51
Red
Green
Blue
HSL
271.2deg 96.15% 10.2%
271.296.1510.2HSL
Hue
Saturation
Lightness
HWB
271.2deg 0.39% 80%
271.20.3980HWB
Hue
Whiteness
Blackness
hex#1B0133
rgb27 1 51
hsl271.2deg 96.15% 10.2%
cmyk47.06% 98.04% 0% 80%
hwb271.2deg 0.39% 80%
xyz-d650.01 0 0.03
oklch0.1828 0.093 302.29
oklab0.1828 0.05 -0.08
CMYK
47.06% 98.04% 0% 80%
47.0698.04080CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1828 0.093 302.29
0.18280.093302.29LCH
Lightness
Chroma
Hue
OKLAB
0.1828 0.05 -0.08
0.18280.05-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons