Black Rock

#0A0A30

General Information about #0A0A30

The hex color #0A0A30, often referred to as 'Black Rock', is a very dark shade of blue tending towards black. It falls within the blue-violet color range, characterized by extremely low saturation and very low brightness. In the RGB color model, it is composed of 3.92% red, 3.92% green, and 18.82% blue. This composition explains the dominant blue undertone despite its overall darkness. In the world of color theory, such dark shades are often used to represent qualities like depth, mystery, and sophistication. Because of its low luminosity, #0A0A30 is frequently utilized as a base color for backgrounds or as an accent color to highlight brighter elements in a design.

The hex color #0A0A30, also known as Black Rock, presents significant accessibility challenges, especially in text-based applications. Its extremely low luminance value indicates a very dark color, which demands careful consideration of contrast ratios. According to WCAG guidelines, sufficient contrast between text and background is crucial for readability, particularly for users with visual impairments. For normal text (size 12 point or lower), a contrast ratio of at least 4.5:1 is recommended, while for large text (size 14 point bold or higher), a ratio of 3:1 is required. Black Rock will likely fail these criteria when paired with many common background colors, including lighter shades of gray. To ensure accessibility, it is essential to pair #0A0A30 with very light colors such as white (#FFFFFF) or very light yellow (#FFFFE0) to meet the contrast requirements. Additionally, consider providing alternative color schemes or user controls to allow individuals to adjust the color contrast to their preferences, thereby improving the overall usability of the content.

Shades

Digital Color Formats

RGB
10 10 48
RGB10 10 48
Red
Green
Blue
HSL
240 65.52% 11.37%
24065.5211.37HSL
Hue
Saturation
Lightness
HWB
240 3.92% 81.18%
2403.9281.18HWB
Hue
Whiteness
Blackness
hex#0A0A30
rgb10 10 48
hsl240 65.52% 11.37%
cmyk79.17% 79.17% 0% 81.18%
hwb240 3.92% 81.18%
xyz0.77 0.5 2.85
CMYK
79.17% 79.17% 0% 81.18%
79.1779.17081.18CMYK
Cyan
Magenta
Yellow
Key
XYZ
0.77 0.5 2.85
0.770.52.85XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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