Blue Charcoal

#020D18

General Information about Blue Charcoal (#020D18)

The hexadecimal color code #020D18 represents a very dark shade of blue, often referred to as Blue Charcoal. In the RGB color model, it is composed of 0.78% red, 5.1% green, and 9.41% blue. This composition results in a color that appears almost black with a subtle hint of blue undertones. The HSL (hue, saturation, lightness) values are 207 degrees for hue, 85.7% for saturation, and 5.1% for lightness, further indicating its deep, dark nature. This color is frequently used in designs aiming for a sophisticated, modern, or minimalist aesthetic. Its low luminance makes it suitable for backgrounds where high contrast with lighter elements is desired. However, it is essential to consider accessibility guidelines when using this color, ensuring sufficient contrast with foreground text and interactive elements for readability and usability. In CMYK, it is comprised of: C:92%, M:45%, Y:0%, K:91%.

The hex color #020D18, also known as Blue Charcoal, presents significant accessibility challenges, particularly in text-based applications. Its extremely low luminance value means that it requires very light text (white or near-white) to achieve sufficient contrast for readability, meeting WCAG (Web Content Accessibility Guidelines) standards. Using darker shades of text on this background would render content virtually invisible to users, especially those with visual impairments. When incorporating this color into user interfaces, careful consideration must be given to font sizes and weight to enhance legibility. For instance, using a bold, larger font can improve contrast slightly. Furthermore, it is recommended to provide alternative color themes or customizable options so users can adjust the display to suit their needs. Providing high-contrast alternatives and clearly indicating interactive elements are essential for inclusive design practices when employing such a dark hue.

Shades

Digital Color Formats

RGB
2 13 24
RGB2 13 24
Red
Green
Blue
HSL
210deg 84.62% 5.1%
21084.625.1HSL
Hue
Saturation
Lightness
HWB
210deg 0.78% 90.59%
2100.7890.59HWB
Hue
Whiteness
Blackness
hex#020D18
rgb2 13 24
hsl210deg 84.62% 5.1%
cmyk91.67% 45.83% 0% 90.59%
hwb210deg 0.78% 90.59%
xyz-d650 0 0.01
oklch0.1535 0.0309 244.58
oklab0.1535 -0.01 -0.03
CMYK
91.67% 45.83% 0% 90.59%
91.6745.83090.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1535 0.0309 244.58
0.15350.0309244.58LCH
Lightness
Chroma
Hue
OKLAB
0.1535 -0.01 -0.03
0.1535-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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