International Klein Blue

#0B35AF

About International Klein Blue

International Klein Blue, represented by the hexadecimal color code #0B35AF, is a deep, intense shade of blue renowned for its unique saturation and visual impact. It was developed by the French artist Yves Klein in collaboration with a Parisian paint supplier. Klein sought to capture the purest expression of blue, believing it to have a unique ability to convey emotion and spiritual depth. The color is achieved through a specific formula involving a synthetic ultramarine pigment. Its intense, matte finish enhances its luminosity and creates a mesmerizing effect. The color is now a registered trademark, so its commercial use might require permission.

The color #0B35AF, also known as International Klein Blue, presents some accessibility challenges. Its dark hue results in a low contrast ratio against lighter backgrounds, which can make text difficult to read for users with visual impairments. According to WCAG guidelines, sufficient contrast is crucial for readability. To ensure accessibility, it is advisable to pair this color with a very light background, such as white or a pale yellow. When using #0B35AF for interactive elements like buttons or links, hover and focus states should be clearly indicated with a contrasting color change. Testing the color combination with accessibility tools that measure contrast ratios is recommended to meet WCAG compliance. Consider providing alternative color schemes for users with specific needs.

Shades

Digital Color Formats

RGB
11 53 175
RGB11 53 175
Red
Green
Blue
HSL
224.63deg 88.17% 36.47%
224.6388.1736.47HSL
Hue
Saturation
Lightness
HWB
224.63deg 4.31% 31.37%
224.634.3131.37HWB
Hue
Whiteness
Blackness
hex#0B35AF
rgb11 53 175
hsl224.63deg 88.17% 36.47%
cmyk93.71% 69.71% 0% 31.37%
hwb224.63deg 4.31% 31.37%
xyz-d650.09 0.06 0.41
oklch0.3994 0.1972 264.13
oklab0.3994 -0.02 -0.2
CMYK
93.71% 69.71% 0% 31.37%
93.7169.71031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.41
0.090.060.41XYZ
X
Y
Z
OKLCH
0.3994 0.1972 264.13
0.39940.1972264.13LCH
Lightness
Chroma
Hue
OKLAB
0.3994 -0.02 -0.2
0.3994-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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