Blue Charcoal

#040E17

General Information about #040E17

#040E17, commonly referred to as Blue Charcoal, is a very dark shade of blue, almost bordering on black. It has a subtle blue undertone that distinguishes it from pure black. This color belongs to the family of dark, muted colors, providing a sense of depth and sophistication. In the RGB color model, it is composed of 1.57% red, 5.49% green, and 9.02% blue. Its primary use cases lie in designs where a subtle, understated color is needed. Due to its dark nature, it's important to consider contrast ratios when using it for text or interface elements, ensuring accessibility and readability. It can evoke feelings of calmness, sophistication, and mystery, making it suitable for various design contexts where these emotions are desired.

The hex color #040E17, also known as Blue Charcoal, presents significant accessibility challenges. Its extremely low luminance value of 0.006 makes it difficult to read when used as text against a white or light-colored background. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. #040E17 fails to meet these requirements against most backgrounds. To improve accessibility, it's essential to use lighter text colors or to modify the color itself to increase its lightness. Careful consideration must be given to the color combinations to ensure readability and usability for all users, including those with visual impairments. Tools for contrast checking are readily available online and should be used to validate color choices.

Shades

Digital Color Formats

RGB
4 14 23
RGB4 14 23
Red
Green
Blue
HSL
208.42deg 70.37% 5.29%
208.4270.375.29HSL
Hue
Saturation
Lightness
HWB
208.42deg 1.57% 90.98%
208.421.5790.98HWB
Hue
Whiteness
Blackness
hex#040E17
rgb4 14 23
hsl208.42deg 70.37% 5.29%
cmyk82.61% 39.13% 0% 90.98%
hwb208.42deg 1.57% 90.98%
xyz-d650 0 0.01
oklch0.1583 0.0256 243.83
oklab0.1583 -0.01 -0.02
CMYK
82.61% 39.13% 0% 90.98%
82.6139.13090.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1583 0.0256 243.83
0.15830.0256243.83LCH
Lightness
Chroma
Hue
OKLAB
0.1583 -0.01 -0.02
0.1583-0.01-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons