Black Rock

#030630

General Information about #030630

The hex color #030630, often referred to as "Black Rock", is a very dark shade of blue-black. In the RGB color model, it is composed of 1.18% red, 2.35% green, and 18.82% blue. This composition explains its deep, subdued hue. In the CMYK color model, used for printing, its components are 94% cyan, 88% magenta, 0% yellow, and 81% black. This indicates a high concentration of cyan and magenta pigments, contributing to its dark, almost monochromatic appearance. Its primary use is to evoke a sense of sophistication, depth, and mystery, suitable for backgrounds, text, and graphic elements. However, care must be taken to ensure sufficient contrast with foreground elements to maintain readability and accessibility, as its low luminance can pose challenges for visually impaired users.

The hex color #030630, also known as Black Rock, presents significant accessibility challenges due to its extremely low luminance. Its very dark nature results in poor contrast against lighter backgrounds, making text and other visual elements difficult to discern for users, especially those with visual impairments. To ensure accessibility, it is crucial to pair this color with very light foreground colors, adhering to WCAG (Web Content Accessibility Guidelines) contrast ratio requirements. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Utilizing accessibility evaluation tools is essential to verify compliance and prevent excluding users. Furthermore, providing alternative styling options, such as user-selectable color schemes, can greatly enhance the usability of content employing this dark hue. Consideration should also be given to users with color blindness, as similar dark shades may appear indistinguishable.

Shades

Digital Color Formats

RGB
3 6 48
RGB3 6 48
Red
Green
Blue
HSL
236deg 88.24% 10%
23688.2410HSL
Hue
Saturation
Lightness
HWB
236deg 1.18% 81.18%
2361.1881.18HWB
Hue
Whiteness
Blackness
hex#030630
rgb3 6 48
hsl236deg 88.24% 10%
cmyk93.75% 87.5% 0% 81.18%
hwb236deg 1.18% 81.18%
xyz-d650.01 0 0.03
oklch0.1609 0.0827 268.47
oklab0.1609 0 -0.08
CMYK
93.75% 87.5% 0% 81.18%
93.7587.5081.18CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1609 0.0827 268.47
0.16090.0827268.47LCH
Lightness
Chroma
Hue
OKLAB
0.1609 0 -0.08
0.16090-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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