Blue Charcoal

#040F1A

General Information about Blue Charcoal

The hex color #040F1A, also known as Blue Charcoal, is a very dark shade of blue, almost black. It belongs to the family of dark blues and is characterized by its low saturation and very low brightness. In the RGB color model, it consists of 4/255 red, 15/255 green, and 26/255 blue. This color is often associated with sophistication, elegance, and mystery. Its muted tone makes it versatile for various applications, from digital design to interior decor. However, due to its darkness, it requires careful consideration of contrast when used with text or other elements to ensure accessibility and readability for all users.

The hex color #040F1A, also known as Blue Charcoal, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low lightness value (very close to black) results in poor contrast against most common background colors, including white. This lack of contrast makes text and graphical elements using this color difficult to read or discern. Web developers should avoid using #040F1A for text, icons, or interactive elements unless paired with a very light color that provides sufficient contrast (a contrast ratio of at least 4.5:1 for regular text and 3:1 for large text, as recommended by WCAG guidelines). Careful consideration and testing with accessibility tools are crucial to ensure that content remains perceivable and usable for all users.

Shades

Digital Color Formats

RGB
4 15 26
RGB4 15 26
Red
Green
Blue
HSL
210deg 73.33% 5.88%
21073.335.88HSL
Hue
Saturation
Lightness
HWB
210deg 1.57% 89.8%
2101.5789.8HWB
Hue
Whiteness
Blackness
hex#040F1A
rgb4 15 26
hsl210deg 73.33% 5.88%
cmyk84.62% 42.31% 0% 89.8%
hwb210deg 1.57% 89.8%
xyz-d650 0 0.01
oklch0.1636 0.0295 247.09
oklab0.1636 -0.01 -0.03
CMYK
84.62% 42.31% 0% 89.8%
84.6242.31089.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1636 0.0295 247.09
0.16360.0295247.09LCH
Lightness
Chroma
Hue
OKLAB
0.1636 -0.01 -0.03
0.1636-0.01-0.03LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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