Blue Charcoal

#040B16

About Blue Charcoal

The hex color #040B16, also known as Blue Charcoal, is a very dark shade of blue. It belongs to the family of blue colors, but its low luminance gives it a near-black appearance. This color is often associated with depth, sophistication, and tranquility. In terms of color composition, it consists of 1.57% red, 4.31% green, and 8.63% blue. Blue Charcoal can be used to evoke feelings of stability and calmness. Its darkness and cool undertones make it suitable for designs needing a somber or sophisticated look. Despite its low luminosity, it is a color with complex properties. In certain digital applications it can cause rendering difficulties due to the almost indistinguishable color in dark conditions.

The hex color #040B16, also known as Blue Charcoal, presents significant accessibility challenges, particularly in text applications. Its extremely low luminance makes it difficult to achieve sufficient contrast against lighter backgrounds, potentially violating WCAG guidelines. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Given its darkness, #040B16 necessitates very light foreground colors to meet these standards. When using this color, careful consideration must be given to users with visual impairments, ensuring that text remains legible and interactive elements are easily distinguishable. Alternatives with slightly higher luminance values might improve accessibility while maintaining a similar aesthetic. Thorough testing with accessibility tools is crucial to validate compliance.

Shades

Digital Color Formats

RGB
4 11 22
RGB4 11 22
Red
Green
Blue
HSL
216.67deg 69.23% 5.1%
216.6769.235.1HSL
Hue
Saturation
Lightness
HWB
216.67deg 1.57% 91.37%
216.671.5791.37HWB
Hue
Whiteness
Blackness
hex#040B16
rgb4 11 22
hsl216.67deg 69.23% 5.1%
cmyk81.82% 50% 0% 91.37%
hwb216.67deg 1.57% 91.37%
xyz-d650 0 0.01
oklch0.1479 0.0274 255.19
oklab0.1479 -0.01 -0.03
CMYK
81.82% 50% 0% 91.37%
81.8250091.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1479 0.0274 255.19
0.14790.0274255.19LCH
Lightness
Chroma
Hue
OKLAB
0.1479 -0.01 -0.03
0.1479-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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