Blue Charcoal

#020717

General Information about #020717

The color #020717, also known as Blue Charcoal, is a very dark shade of blue, almost appearing black to the naked eye. In the RGB color model, it is composed of 0.78% red, 2.75% green, and 8.63% blue. This composition gives it a subtle cool undertone. The perceived darkness results from its very low luminance value. Blue Charcoal is often associated with sophistication, depth, and a sense of understated elegance. It can be used to evoke a feeling of calmness and stability. Its hex code, #020717, is commonly used in web design and graphic design to specify this precise shade. The color is often utilized where a non-intrusive and sleek appearance is needed, although contrast considerations are important due to its darkness.

The hex color #020717, also known as Blue Charcoal, presents significant accessibility challenges, particularly in text-based contexts. Its extremely low luminance value (very dark) results in poor contrast against most background colors, especially white. According to WCAG (Web Content Accessibility Guidelines), sufficient contrast is crucial for readability and usability, ensuring that users with visual impairments can perceive content effectively. To meet minimum accessibility standards, text using #020717 should be paired with a very light background color. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using color contrast checkers can help verify compliance. When using this color for interactive elements like buttons or links, ensure sufficient visual cues beyond color alone are present. For instance, adding an underline or using an icon can enhance usability for all users, including those with color vision deficiencies. Therefore, while #020717 might be aesthetically pleasing in certain designs, careful consideration and testing are necessary to ensure accessibility.

Shades

Digital Color Formats

RGB
2 7 23
RGB2 7 23
Red
Green
Blue
HSL
225.71deg 84% 4.9%
225.71844.9HSL
Hue
Saturation
Lightness
HWB
225.71deg 0.78% 90.98%
225.710.7890.98HWB
Hue
Whiteness
Blackness
hex#020717
rgb2 7 23
hsl225.71deg 84% 4.9%
cmyk91.3% 69.57% 0% 90.98%
hwb225.71deg 0.78% 90.98%
xyz-d650 0 0.01
oklch0.1326 0.0384 262.04
oklab0.1326 -0.01 -0.04
CMYK
91.3% 69.57% 0% 90.98%
91.369.57090.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1326 0.0384 262.04
0.13260.0384262.04LCH
Lightness
Chroma
Hue
OKLAB
0.1326 -0.01 -0.04
0.1326-0.01-0.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons