Blue Charcoal

#020A17

General Information

The hex color code #020A17, often referred to as Blue Charcoal, is a very dark, subdued shade of blue. In the RGB color model, it is composed of 0.78% red, 3.92% green, and 9.02% blue. This low percentage of each primary color results in its dark appearance. The color is frequently described as being close to black, with a hint of blue that adds a touch of sophistication. It is commonly used in design applications where a dark, subtle background is desired, often conveying a sense of elegance and modernity. Due to its very low luminance, careful consideration must be given to ensure sufficient contrast with foreground elements for accessibility.

The hex color #020A17, also known as Blue Charcoal, presents significant accessibility challenges due to its extremely low luminance. The very dark nature of this color means that text or other elements rendered in #020A17 will require a very light foreground color to ensure sufficient contrast for readability. A contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text (14 point and bold or larger, or 18 point or larger). When used as a background color, it's crucial to pair it with a foreground color that meets these contrast standards to comply with WCAG guidelines and ensure usability for users with visual impairments. Failure to provide adequate contrast can result in content that is difficult or impossible to read, leading to a poor user experience.

Shades

Digital Color Formats

RGB
2 10 23
RGB2 10 23
Red
Green
Blue
HSL
217.14deg 84% 4.9%
217.14844.9HSL
Hue
Saturation
Lightness
HWB
217.14deg 0.78% 90.98%
217.140.7890.98HWB
Hue
Whiteness
Blackness
hex#020A17
rgb2 10 23
hsl217.14deg 84% 4.9%
cmyk91.3% 56.52% 0% 90.98%
hwb217.14deg 0.78% 90.98%
xyz-d650 0 0.01
oklch0.143 0.0331 253.12
oklab0.143 -0.01 -0.03
CMYK
91.3% 56.52% 0% 90.98%
91.356.52090.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.143 0.0331 253.12
0.1430.0331253.12LCH
Lightness
Chroma
Hue
OKLAB
0.143 -0.01 -0.03
0.143-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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