Blue Charcoal

#051215

General Information about #051215

The hex color code #051215, often referred to as Blue Charcoal, represents a very dark shade of cyan-blue. It is composed of 2% red, 7.1% green, and 8.2% blue. In the RGB color space, it translates to (5, 18, 21). This color possesses an extremely low luminance value of 1.6%, making it appear almost black. Blue Charcoal belongs to the family of dark, muted colors, often associated with sophistication, depth, and tranquility. Its subtle blue undertones add a touch of coolness, setting it apart from pure black or gray. In the CMYK color model, which is used for printing, #051215 consists of 76% cyan, 14% magenta, 0% yellow, and 92% black. Due to its darkness, it's frequently used in designs where a subdued and understated aesthetic is desired.

The hex color #051215, also known as Blue Charcoal, presents significant accessibility challenges due to its very low luminance. Its dark nature results in poor contrast against typical light backgrounds, making it difficult for users with visual impairments to discern text or graphical elements. To ensure accessibility, it's crucial to pair this color with very light hues that provide a high contrast ratio, meeting WCAG (Web Content Accessibility Guidelines) standards for readability. Specifically, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Without careful consideration, using #051215 can exclude users and diminish the overall usability of a website or application. Adequate testing with accessibility tools is essential to validate contrast levels and guarantee a more inclusive user experience. Always prioritize sufficient contrast to ensure that content is perceivable and understandable for all users, including those with low vision or color blindness.

Shades

Digital Color Formats

RGB
5 18 21
RGB5 18 21
Red
Green
Blue
HSL
191.25deg 61.54% 5.1%
191.2561.545.1HSL
Hue
Saturation
Lightness
HWB
191.25deg 1.96% 91.76%
191.251.9691.76HWB
Hue
Whiteness
Blackness
hex#051215
rgb5 18 21
hsl191.25deg 61.54% 5.1%
cmyk76.19% 14.29% 0% 91.76%
hwb191.25deg 1.96% 91.76%
xyz-d650 0.01 0.01
oklch0.1712 0.0204 213.37
oklab0.1712 -0.02 -0.01
CMYK
76.19% 14.29% 0% 91.76%
76.1914.29091.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0.01 0.01
00.010.01XYZ
X
Y
Z
OKLCH
0.1712 0.0204 213.37
0.17120.0204213.37LCH
Lightness
Chroma
Hue
OKLAB
0.1712 -0.02 -0.01
0.1712-0.02-0.01LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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