Blue Charcoal

#05131A

General Information about Blue Charcoal

The hexadecimal color #05131A, also known as Blue Charcoal, is a very dark shade of blue. It sits low on the color spectrum in terms of lightness and saturation, contributing to its muted and almost neutral appearance. This color is created by combining very small amounts of red, green, and blue light, with blue being the most dominant. In terms of color theory, Blue Charcoal evokes feelings of calmness, sophistication, and depth. Its darkness makes it suitable for creating a sense of mystery or seriousness. It is often associated with elegance and professionalism, making it a popular choice for brands aiming to project a mature and refined image. The subtle blue undertone adds a touch of serenity, preventing it from feeling overly stark or imposing.

The color #05131A, also known as Blue Charcoal, presents significant accessibility challenges. Its extremely dark nature results in very low contrast against typical light backgrounds, making text or interactive elements nearly illegible for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Blue Charcoal likely fails to meet these criteria against most light-colored backgrounds. Therefore, it is crucial to pair this color with very light shades, ideally whites or near-whites, to achieve sufficient contrast. Furthermore, avoid using #05131A for essential UI components without thorough testing and consideration for users with low vision or color blindness. Providing alternative high-contrast themes is a recommended best practice when incorporating such a dark color in a design.

Shades

Digital Color Formats

RGB
5 19 26
RGB5 19 26
Red
Green
Blue
HSL
200 67.74% 6.08%
20067.746.08HSL
Hue
Saturation
Lightness
HWB
200 1.96% 89.8%
2001.9689.8HWB
Hue
Whiteness
Blackness
hex#05131A
rgb5 19 26
hsl200 67.74% 6.08%
cmyk80.77% 26.92% 0% 89.8%
hwb200 1.96% 89.8%
xyz0.48 0.57 1.06
CMYK
80.77% 26.92% 0% 89.8%
80.7726.92089.8CMYK
Cyan
Magenta
Yellow
Key
XYZ
0.48 0.57 1.06
0.480.571.06XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025