International Klein Blue

#0925AB

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue mixed by the French artist Yves Klein. IKB's visual impact comes from its heavy reliance on ultramarine, a pure, highly saturated blue pigment. Yves Klein registered this color as a trademarked paint under the name International Klein Blue (IKB) in 1957. This particular shade is renowned for its intense saturation and unique matte finish, achieved by suspending pure ultramarine pigment in a synthetic resin. Klein used IKB to create monochrome paintings and sculptures, seeking to evoke a sense of boundless space and spiritual depth. The color has since become iconic and influential in the art world, fashion, and design, representing creativity, innovation, and a profound connection to the infinite. Its distinctive properties make it stand out among other blues.

The hex color #0925ab, a deep shade of blue, presents several accessibility considerations for web developers. Its low luminance value necessitates careful attention to color contrast, particularly when used for text or interactive elements. According to WCAG guidelines, sufficient contrast ratios (at least 4.5:1 for normal text and 3:1 for large text) must be maintained against background colors to ensure readability for users with visual impairments. Using this color for small text on a white background, for example, would likely fail accessibility checks. To improve accessibility, consider pairing #0925ab with lighter shades or using it for larger design elements where contrast is less critical. Also, always provide alternative visual cues (e.g., underlines, icons) in addition to color to convey information, ensuring that users who are colorblind or have other visual disabilities can still understand and interact with the content effectively. Testing with accessibility tools is crucial.

Shades

Digital Color Formats

RGB
9 37 171
RGB9 37 171
Red
Green
Blue
HSL
229.63 90% 35.29%
229.639035.29HSL
Hue
Saturation
Lightness
HWB
229.63 3.53% 32.94%
229.633.5332.94HWB
Hue
Whiteness
Blackness
hex#0925AB
rgb9 37 171
hsl229.63 90% 35.29%
cmyk94.74% 78.36% 0% 32.94%
hwb229.63 3.53% 32.94%
xyz8.12 4.32 38.93
CMYK
94.74% 78.36% 0% 32.94%
94.7478.36032.94CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.12 4.32 38.93
8.124.3238.93XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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