Blue Charcoal

#011313

General Information about #011313

The hexadecimal color code #011313 is a dark, muted shade of blue-gray, often referred to as Blue Charcoal. It is composed of 0.39% red, 7.45% green, and 7.45% blue. In the RGB color model, this translates to R:1, G:19, B:19. The corresponding CMYK values are C:95, M:0, Y:0, K:93. This color is predominantly used to convey a sense of seriousness, depth, and sophistication. Due to its low lightness value, it is often used as a background color or in combination with brighter, contrasting colors to improve readability. In color theory, #011313 falls under the category of cool colors, which are generally associated with calmness and stability. The color's subtle blue undertone distinguishes it from a pure gray, adding a touch of elegance and refinement.

The color #011313, also known as Blue Charcoal, presents significant accessibility challenges, particularly regarding color contrast. Due to its very dark nature, text rendered in this color on a white or light background may fail to meet WCAG (Web Content Accessibility Guidelines) standards for sufficient contrast. This can make content difficult or impossible to read for users with visual impairments. When using this color, it is crucial to ensure a high contrast ratio, ideally 4.5:1 for normal text and 3:1 for large text, as defined by WCAG. Consider pairing it with very light colors like white or pale yellow for text. Also, avoid using #011313 for interactive elements, unless accompanied by clear visual cues beyond color alone, to cater to users with color vision deficiencies. Thoroughly testing with accessibility tools and diverse user groups is essential to ensure an inclusive design.

Shades

Digital Color Formats

RGB
1 19 19
RGB1 19 19
Red
Green
Blue
HSL
180 90% 3.92%
180903.92HSL
Hue
Saturation
Lightness
HWB
180 0.39% 92.55%
1800.3992.55HWB
Hue
Whiteness
Blackness
hex#011313
rgb1 19 19
hsl180 90% 3.92%
cmyk94.74% 0% 0% 92.55%
hwb180 0.39% 92.55%
xyz-d650 0.01 0.01
oklch0.17 0.0271 194.95
oklab0.17 -0.03 -0.01
CMYK
94.74% 0% 0% 92.55%
94.740092.55CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0.01 0.01
00.010.01XYZ
X
Y
Z
OKLCH
0.17 0.0271 194.95
0.170.0271194.95LCH
Lightness
Chroma
Hue
OKLAB
0.17 -0.03 -0.01
0.17-0.03-0.01LAB
Lightness
Green–Red
Blue–Yellow

Alternative colors

Applications

Complementary color

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