International Klein Blue

#0319B1

About International Klein Blue

International Klein Blue (IKB), with the hexadecimal color code #0319B1, is a deep, saturated blue hue patented by the French artist Yves Klein. Klein developed this unique shade of blue in collaboration with a Parisian paint dealer, aiming to capture the essence of pure color. IKB is renowned for its intense, almost mesmerizing quality, achieved through a specific formulation that enhances the pigment's saturation and depth. The color has become synonymous with Klein's artistic vision, representing concepts of infinity, spirituality, and the immaterial. In art, IKB is often used as a monochrome field, allowing viewers to immerse themselves in the color itself, free from representational distractions. The pigment's unique qualities have made it a significant element in modern art history.

The hex color #0319B1, also known as International Klein Blue, presents significant accessibility challenges due to its very dark hue. When used as a background color, it requires extremely light text to provide sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Given the darkness of this blue, achieving these ratios may necessitate using nearly white text, which could still cause eye strain for some users, especially on prolonged exposure. Therefore, consider alternative lighter shades of blue or pair it with carefully selected, high-contrast colors. It is essential to test the color combination with accessibility tools and real users to ensure usability for individuals with visual impairments.

Shades

Digital Color Formats

RGB
3 25 177
RGB3 25 177
Red
Green
Blue
HSL
232.41 96.67% 35.29%
232.4196.6735.29HSL
Hue
Saturation
Lightness
HWB
232.41 1.18% 30.59%
232.411.1830.59HWB
Hue
Whiteness
Blackness
hex#0319B1
rgb3 25 177
hsl232.41 96.67% 35.29%
cmyk98.31% 85.88% 0% 30.59%
hwb232.41 1.18% 30.59%
xyz8.32 3.89 41.91
CMYK
98.31% 85.88% 0% 30.59%
98.3185.88030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.32 3.89 41.91
8.323.8941.91XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons