Black Rock

#180729

General Information on #180729

The hex color #180729, also recognized as Black Rock, is a deep, dark shade hovering between black and indigo. It's composed of 9.4% red, 2.7% green, and 16.1% blue. Within the RGB color space, this translates to a color that is heavily weighted towards the blue end of the spectrum, giving it a cool and mysterious quality. The color evokes a sense of depth, sophistication, and understated elegance. Its darkness makes it useful for creating a sense of contrast or providing a backdrop for brighter, more vibrant colors. Its spectral reflectance curve indicates minimal light reflection, as expected from such a deep color, making it ideal for applications where light absorption is desired.

The hex color #180729, also known as Black Rock, presents significant accessibility challenges, particularly concerning color contrast. Its extremely dark nature means that any text or interactive elements rendered in lighter colors must be carefully chosen to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text. When using #180729 as a background, designers should opt for very light text colors, such as white or pale yellow, and verify the contrast ratio using accessibility tools. Furthermore, avoid using this color for essential visual cues or indicators without providing alternative methods for conveying the same information. Consider users with low vision or color blindness when designing with this color.

Shades

Digital Color Formats

RGB
24 7 41
RGB24 7 41
Red
Green
Blue
HSL
270deg 70.83% 9.41%
27070.839.41HSL
Hue
Saturation
Lightness
HWB
270deg 2.75% 83.92%
2702.7583.92HWB
Hue
Whiteness
Blackness
hex#180729
rgb24 7 41
hsl270deg 70.83% 9.41%
cmyk41.46% 82.93% 0% 83.92%
hwb270deg 2.75% 83.92%
xyz-d650.01 0.01 0.02
oklch0.1796 0.0671 303.41
oklab0.1796 0.04 -0.06
CMYK
41.46% 82.93% 0% 83.92%
41.4682.93083.92CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.02
0.010.010.02XYZ
X
Y
Z
OKLCH
0.1796 0.0671 303.41
0.17960.0671303.41LCH
Lightness
Chroma
Hue
OKLAB
0.1796 0.04 -0.06
0.17960.04-0.06LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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