Blue Charcoal

#001217

General Information about #001217

The hex color #001217, often referred to as Blue Charcoal, is a very dark shade of blue-black. Its composition is primarily blue, with minimal red and green components. In the RGB color model, it translates to R:0, G:18, B:23. This color evokes feelings of sophistication, depth, and tranquility. Due to its low luminance, it is often perceived as a neutral color, making it versatile for various design applications. However, its darkness also means it should be used judiciously to ensure adequate contrast and readability, especially when used for text or important visual elements. Blue Charcoal provides a sleek and modern feel. It is very often used in minimalist designs, as a very dark background. It is also used in corporate branding where a dark and neutral hue is more suitable.

The hex color #001217, also known as Blue Charcoal, presents significant accessibility challenges. Its extremely low luminance (very close to black) results in poor contrast against most background colors, especially white. This can make text and other visual elements difficult or impossible for users with visual impairments to perceive clearly. To ensure accessibility, it is crucial to use #001217 only with very light background colors that provide a high contrast ratio (at least 4.5:1 for normal text and 3:1 for large text as per WCAG guidelines). Avoid using this color for important textual information, interactive elements, or graphical details without careful consideration of contrast. Testing with accessibility tools and getting feedback from users is highly recommended to ensure that content is usable by everyone.

Shades

Digital Color Formats

RGB
0 18 23
RGB0 18 23
Red
Green
Blue
HSL
193.04deg 100% 4.51%
193.041004.51HSL
Hue
Saturation
Lightness
HWB
193.04deg 0% 90.98%
193.04090.98HWB
Hue
Whiteness
Blackness
hex#001217
rgb0 18 23
hsl193.04deg 100% 4.51%
cmyk100% 21.74% 0% 90.98%
hwb193.04deg 0% 90.98%
xyz-d650 0 0.01
oklch0.1678 0.0297 215.53
oklab0.1678 -0.02 -0.02
CMYK
100% 21.74% 0% 90.98%
10021.74090.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1678 0.0297 215.53
0.16780.0297215.53LCH
Lightness
Chroma
Hue
OKLAB
0.1678 -0.02 -0.02
0.1678-0.02-0.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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