Blue Charcoal

#011010

General Information about #011010

The hex color #011010, also known as Blue Charcoal, is a very dark shade that sits at the extreme low end of the color spectrum in terms of luminance. It is composed of 0.4% red, 6.3% green, and 6.3% blue. This color is often described as a muted, deep blue-gray, resembling the color of charcoal with a hint of blue undertones. Due to its low brightness, it is generally perceived as a cool and understated color. It is not a commonly used color due to its challenges related to visibility and accessibility, however it may be applied in small portions to increase the refinement of the design. Because of its darkness, the color has its best use when it is applied in areas that are not in direct sunlight.

The hex color #011010, also known as Blue Charcoal, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance value of 0.004 makes it difficult to achieve sufficient contrast against lighter backgrounds. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text. This dark hue will likely fail these tests when paired with many common background colors. Web developers should avoid using #011010 for text or interactive elements unless carefully paired with a very light color and thoroughly tested for accessibility. Providing alternative high-contrast themes is advisable to ensure inclusivity. Using tools such as a contrast checker can help to verify compliance with accessibility standards and improve the user experience for everyone.

Shades

Digital Color Formats

RGB
1 16 16
RGB1 16 16
Red
Green
Blue
HSL
180 88.24% 3.33%
18088.243.33HSL
Hue
Saturation
Lightness
HWB
180 0.39% 93.73%
1800.3993.73HWB
Hue
Whiteness
Blackness
hex#011010
rgb1 16 16
hsl180 88.24% 3.33%
cmyk93.75% 0% 0% 93.73%
hwb180 0.39% 93.73%
xyz-d650 0 0.01
oklch0.1577 0.0247 194.98
oklab0.1577 -0.02 -0.01
CMYK
93.75% 0% 0% 93.73%
93.750093.73CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1577 0.0247 194.98
0.15770.0247194.98LCH
Lightness
Chroma
Hue
OKLAB
0.1577 -0.02 -0.01
0.1577-0.02-0.01LAB
Lightness
Green–Red
Blue–Yellow

Alternative colors

Applications

Complementary color

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