Blue Charcoal

#051018

General Information about Blue Charcoal

The color #051018, also known as Blue Charcoal, is a very dark shade of blue with minimal saturation, making it appear almost black. It belongs to the family of cool colors and evokes feelings of sophistication, depth, and tranquility. Due to its darkness, it is often used to create a sense of mystery or elegance. In color theory, this color is considered a neutral tone, which means it can be paired with a wide variety of other colors to create different effects. Because of its extremely dark value, it needs to be used carefully in design to ensure sufficient contrast with lighter elements. It also works really well in flat design.

The color #051018, also known as Blue Charcoal, presents significant accessibility challenges due to its extremely dark nature. When used as a background color, it requires very light text (ideally white or near-white) to ensure sufficient contrast for readability. According to WCAG guidelines, the contrast ratio between the text and background should be at least 4.5:1 for normal text and 3:1 for large text. This dark shade will likely fail these contrast tests with most text colors other than the lightest ones. Therefore, designers must carefully consider the text color used in conjunction with this background to ensure compliance with accessibility standards. Using a color contrast checker is highly recommended to verify adequate contrast. It's also advisable to provide alternative color schemes for users with visual impairments, allowing them to customize the display to their needs. For foreground elements, ensure they are significantly lighter and larger, or implement enhanced visual cues to aid visibility.

Shades

Digital Color Formats

RGB
5 16 24
RGB5 16 24
Red
Green
Blue
HSL
205.26deg 65.52% 5.69%
205.2665.525.69HSL
Hue
Saturation
Lightness
HWB
205.26deg 1.96% 90.59%
205.261.9690.59HWB
Hue
Whiteness
Blackness
hex#051018
rgb5 16 24
hsl205.26deg 65.52% 5.69%
cmyk79.17% 33.33% 0% 90.59%
hwb205.26deg 1.96% 90.59%
xyz-d650 0 0.01
oklch0.1664 0.0242 239.59
oklab0.1664 -0.01 -0.02
CMYK
79.17% 33.33% 0% 90.59%
79.1733.33090.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1664 0.0242 239.59
0.16640.0242239.59LCH
Lightness
Chroma
Hue
OKLAB
0.1664 -0.01 -0.02
0.1664-0.01-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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