International Klein Blue

#031BB0

About International Klein Blue

International Klein Blue, represented by the hexadecimal color code #031BB0, is a deep and intense shade of blue. It is named after the French artist Yves Klein, who patented the color in 1957. Klein sought to create a blue that was as pure and vibrant as possible, evoking a sense of limitless space and spiritual depth. The color is achieved through a specific formulation of ultramarine pigment mixed with a synthetic resin binder, which preserves the pigment's intensity. #031BB0 has a strong presence, often associated with creativity, innovation, and the avant-garde. Its unique character has made it a favorite among artists, designers, and architects seeking to make a bold statement.

The hex color #031BB0, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance contrast against white or light backgrounds makes text and interface elements difficult to read. According to WCAG guidelines, sufficient contrast is crucial for readability. For text, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. The contrast ratio of #031BB0 against white is far below these thresholds, failing accessibility standards. To improve accessibility, consider pairing #031BB0 with much lighter colors, ideally shades of yellow or white, and ensure text size is adequately large. Providing alternative color schemes is a good practice to cater to different user preferences and needs, thus enhancing usability for everyone.

Shades

Digital Color Formats

RGB
3 27 176
RGB3 27 176
Red
Green
Blue
HSL
231.68 96.65% 35.1%
231.6896.6535.1HSL
Hue
Saturation
Lightness
HWB
231.68 1.18% 30.98%
231.681.1830.98HWB
Hue
Whiteness
Blackness
hex#031BB0
rgb3 27 176
hsl231.68 96.65% 35.1%
cmyk98.3% 84.66% 0% 30.98%
hwb231.68 1.18% 30.98%
xyz8.27 3.94 41.4
CMYK
98.3% 84.66% 0% 30.98%
98.384.66030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.27 3.94 41.4
8.273.9441.4XYZ
X
Y
Z

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