International Klein Blue

#0524AF

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. The visual impact of IKB comes from its heavy reliance on ultramarine, as well as Klein's artistic formulation of the color, which privileges texture and brilliance. The pigment is created by suspending ultramarine pigment in a synthetic resin, which allows the pigment to maintain its original intensity and saturation. It's renowned for its remarkable purity and intensity, and Klein successfully patented this unique formulation in 1960. Klein used IKB in a wide variety of artworks, most famously in his monochrome paintings. The color has since become iconic and associated with modern art and a sense of bold creativity.

International Klein Blue (#0524AF) presents potential accessibility challenges due to its deep, saturated nature. When used as a text color, it requires a very light background to ensure sufficient contrast for readability, particularly for users with visual impairments. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text, as specified by WCAG guidelines. When used for interactive elements like buttons or links, clear visual cues beyond color alone should be provided, such as underlines or borders. Avoid pairing it with other dark or similarly saturated colors, as this can reduce legibility and cause eye strain. Thoroughly test color combinations with accessibility tools to verify compliance with accessibility standards and ensure a positive user experience for all individuals.

Shades

Digital Color Formats

RGB
5 36 175
RGB5 36 175
Red
Green
Blue
HSL
229.06 94.44% 35.29%
229.0694.4435.29HSL
Hue
Saturation
Lightness
HWB
229.06 1.96% 31.37%
229.061.9631.37HWB
Hue
Whiteness
Blackness
hex#0524AF
rgb5 36 175
hsl229.06 94.44% 35.29%
cmyk97.14% 79.43% 0% 31.37%
hwb229.06 1.96% 31.37%
xyz8.43 4.39 40.96
CMYK
97.14% 79.43% 0% 31.37%
97.1479.43031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.43 4.39 40.96
8.434.3940.96XYZ
X
Y
Z

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