Blue Charcoal

#020819

General Information about Blue Charcoal

Blue Charcoal, represented by the hex code #020819, is a very dark shade of blue. It sits close to black on the color spectrum, possessing minimal luminance. The color's name suggests its resemblance to charcoal with a bluish tint. In the RGB color model, it consists of 0.8% red, 3.14% green, and 9.8% blue. Its primary use is in scenarios where a subtle, dark background is required, often in digital design and sometimes in print. However, its low brightness value necessitates careful consideration of contrast ratios to ensure readability and accessibility, especially when used for text or interactive elements. It is important to remember that color perception can vary across different display devices and individual viewers.

The hex color #020819, also known as Blue Charcoal, presents significant accessibility challenges due to its extremely low luminance. Its very dark nature results in poor contrast against most background colors, particularly white and lighter shades. This lack of contrast makes it difficult for individuals with visual impairments, including those with low vision or color blindness, to discern 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 to ensure readability. Blue Charcoal likely fails to meet these contrast requirements against many backgrounds, necessitating careful consideration and the use of higher luminance foreground colors, such as white or yellow, to provide sufficient contrast and meet accessibility standards. Testing with accessibility evaluation tools is crucial to ensure compliance.

Shades

Digital Color Formats

RGB
2 8 25
RGB2 8 25
Red
Green
Blue
HSL
224.35deg 85.19% 5.29%
224.3585.195.29HSL
Hue
Saturation
Lightness
HWB
224.35deg 0.78% 90.2%
224.350.7890.2HWB
Hue
Whiteness
Blackness
hex#020819
rgb2 8 25
hsl224.35deg 85.19% 5.29%
cmyk92% 68% 0% 90.2%
hwb224.35deg 0.78% 90.2%
xyz-d650 0 0.01
oklch0.1382 0.0402 260.96
oklab0.1382 -0.01 -0.04
CMYK
92% 68% 0% 90.2%
9268090.2CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1382 0.0402 260.96
0.13820.0402260.96LCH
Lightness
Chroma
Hue
OKLAB
0.1382 -0.01 -0.04
0.1382-0.01-0.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons