International Klein Blue

#0B1DBF

About International Klein Blue

International Klein Blue, represented by the hex code #0B1DBF, is a deep and intensely saturated shade of blue. It was developed by the French artist Yves Klein, who sought to create a blue that captured the essence of the sky and the sea. This color is achieved by suspending pure ultramarine pigment in a synthetic resin, which allows the pigment to retain its brilliance and intensity. International Klein Blue is often associated with feelings of tranquility, spirituality, and infinity. Its unique vibrancy and depth have made it a popular choice in art, design, and fashion, where it is used to create striking visual effects and evoke a sense of wonder. The color has become iconic and remains a testament to Klein's artistic vision and his quest to capture the ethereal qualities of the natural world.

The hex color #0b1dbf, also known as International Klein Blue, presents significant accessibility challenges. Its low luminance value results in poor contrast against white backgrounds, making text and other elements difficult to read for users with visual impairments. According to WCAG guidelines, it fails the contrast ratio requirements for both normal and large text sizes, hindering readability for a broad audience, including those with low vision or color blindness. To improve accessibility, consider using a lighter background color or adjusting the text color to a lighter hue. Tools like contrast checkers can help ensure sufficient contrast ratios for optimal readability. Alternatively, implementing color combinations with higher contrast ratios can improve the user experience, making content more accessible and inclusive to users with varying visual abilities. Careful consideration of color contrast is crucial for creating accessible web designs.

Shades

Digital Color Formats

RGB
11 29 191
RGB11 29 191
Red
Green
Blue
HSL
234deg 89.11% 39.61%
23489.1139.61HSL
Hue
Saturation
Lightness
HWB
234deg 4.31% 25.1%
2344.3125.1HWB
Hue
Whiteness
Blackness
hex#0B1DBF
rgb11 29 191
hsl234deg 89.11% 39.61%
cmyk94.24% 84.82% 0% 25.1%
hwb234deg 4.31% 25.1%
xyz-d650.1 0.05 0.5
oklch0.385 0.2375 265.43
oklab0.385 -0.02 -0.24
CMYK
94.24% 84.82% 0% 25.1%
94.2484.82025.1CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.1 0.05 0.5
0.10.050.5XYZ
X
Y
Z
OKLCH
0.385 0.2375 265.43
0.3850.2375265.43LCH
Lightness
Chroma
Hue
OKLAB
0.385 -0.02 -0.24
0.385-0.02-0.24LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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