Blue Charcoal

#010815

General Information about #010815

The hexadecimal color code #010815 represents a very dark shade of blue, often referred to as Blue Charcoal. It's composed of 0.4% red, 3.1% green, and 8.2% blue. In the RGB color model, this translates to R:1, G:8, B:21. The closer these values are to zero, the darker the color. #010815 has a hue of 214 degrees, a saturation of 91.3%, and a lightness of 4.3%. This color is commonly used to evoke feelings of mystery, sophistication, and depth. Due to its darkness, it can be challenging to use effectively in design without careful consideration of contrast and readability, making it more suited for accent elements or backgrounds when paired with lighter colors. The color is a part of a subtractive color mixture, which is based on the CMYK color model (cyan, magenta, yellow, key (black)).

The color #010815, a very dark shade of blue tending towards black, presents significant accessibility challenges, especially in web design. Its extremely low luminance makes it difficult to achieve sufficient contrast with text or other visual elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text against its background. Using #010815 as a background color would necessitate very light text colors (e.g., near white) to meet these standards. Even then, readability might be compromised for users with low vision or color blindness. Careful consideration must be given to font weight, size, and alternative color combinations to ensure accessibility and a positive user experience. Avoid using this color for critical information or interactive elements without thorough testing and validation against accessibility standards. Providing alternative high-contrast themes is advisable.

Shades

Digital Color Formats

RGB
1 8 21
RGB1 8 21
Red
Green
Blue
HSL
219deg 90.91% 4.31%
21990.914.31HSL
Hue
Saturation
Lightness
HWB
219deg 0.39% 91.76%
2190.3991.76HWB
Hue
Whiteness
Blackness
hex#010815
rgb1 8 21
hsl219deg 90.91% 4.31%
cmyk95.24% 61.9% 0% 91.76%
hwb219deg 0.39% 91.76%
xyz-d650 0 0.01
oklch0.133 0.034 252.62
oklab0.133 -0.01 -0.03
CMYK
95.24% 61.9% 0% 91.76%
95.2461.9091.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.133 0.034 252.62
0.1330.034252.62LCH
Lightness
Chroma
Hue
OKLAB
0.133 -0.01 -0.03
0.133-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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