Black Rock

#040A2D

General Information about #040A2D

The hexadecimal color code #040A2D, often referred to as "Black Rock," represents a very dark shade of blue. It is composed of 1.57% red, 3.92% green, and 17.65% blue. In the RGB color space, it can be expressed as rgb(4, 10, 45). The color is characterized by its low saturation and luminance, making it appear almost black. Colors similar to Black Rock are often associated with depth, sophistication, and stability. In color psychology, dark blues can evoke feelings of calmness, trustworthiness, and authority, making them suitable for use in professional contexts. The color's hex triplet is 040A2D. Black Rock is often used in designs to create a sense of mystery and elegance.

The hex color #040A2D, also known as Black Rock, presents significant accessibility challenges due to its very dark nature. Its low luminance results in poor contrast against lighter backgrounds, making it difficult for individuals with visual impairments to perceive text or graphical elements rendered in this color. Web Content Accessibility Guidelines (WCAG) emphasize a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text against its background. Black Rock typically fails to meet these ratios with most common background colors, necessitating careful consideration of color pairings. Designers must ensure sufficient contrast by using very light text or interface elements on a #040A2D background, or conversely, using the color sparingly for larger elements. Alternative color choices or the addition of borders can further improve accessibility. Tools like contrast checkers can help web developers verify compliance with accessibility standards.

Shades

Digital Color Formats

RGB
4 10 45
RGB4 10 45
Red
Green
Blue
HSL
231.22deg 83.67% 9.61%
231.2283.679.61HSL
Hue
Saturation
Lightness
HWB
231.22deg 1.57% 82.35%
231.221.5782.35HWB
Hue
Whiteness
Blackness
hex#040A2D
rgb4 10 45
hsl231.22deg 83.67% 9.61%
cmyk91.11% 77.78% 0% 82.35%
hwb231.22deg 1.57% 82.35%
xyz-d650.01 0 0.03
oklch0.1678 0.071 268
oklab0.1678 0 -0.07
CMYK
91.11% 77.78% 0% 82.35%
91.1177.78082.35CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0 0.03
0.0100.03XYZ
X
Y
Z
OKLCH
0.1678 0.071 268
0.16780.071268LCH
Lightness
Chroma
Hue
OKLAB
0.1678 0 -0.07
0.16780-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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