Jacko Bean

#311B03

General Information about #311B03

The hex color #311B03, also known as Jacko Bean, is a very dark shade of brown, almost black. It belongs to the brown color family and is characterized by low saturation and low brightness. In the RGB color model, it is composed of 19.22% red, 10.59% green, and 1.18% blue. In the CMYK color model, which is often used for printing, it consists of 0% cyan, 45% magenta, 94% yellow, and 81% black. Colors like #311B03 are often associated with earthiness, stability, and sometimes even a sense of austerity or seriousness. It is a color that rarely stands out on its own but can be effective when used to create contrast or provide a grounding element within a broader design.

The hex color #311B03, also known as Jacko Bean, presents significant accessibility challenges. Its very low luminance makes it difficult to discern against most backgrounds, particularly white or light-colored ones. Text using this color would be nearly unreadable for individuals with normal vision and almost entirely inaccessible for those with visual impairments. According to WCAG (Web Content Accessibility Guidelines), a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text. #311B03 falls far short of these recommendations. To improve accessibility, consider using lighter text colors on a #311B03 background or, preferably, using #311B03 as an accent color sparingly. Always test color combinations with accessibility tools to ensure compliance with accessibility standards. Consider using alternative colors with higher luminance and saturation to ensure usability.

Shades

Digital Color Formats

RGB
49 27 3
RGB49 27 3
Red
Green
Blue
HSL
31.3deg 88.46% 10.2%
31.388.4610.2HSL
Hue
Saturation
Lightness
HWB
31.3deg 1.18% 80.78%
31.31.1880.78HWB
Hue
Whiteness
Blackness
hex#311B03
rgb49 27 3
hsl31.3deg 88.46% 10.2%
cmyk0% 44.9% 93.88% 80.78%
hwb31.3deg 1.18% 80.78%
xyz-d650.02 0.01 0
oklch0.2466 0.0505 65.16
oklab0.2466 0.02 0.05
CMYK
0% 44.9% 93.88% 80.78%
044.993.8880.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.02 0.01 0
0.020.010XYZ
X
Y
Z
OKLCH
0.2466 0.0505 65.16
0.24660.050565.16LCH
Lightness
Chroma
Hue
OKLAB
0.2466 0.02 0.05
0.24660.020.05LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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