International Klein Blue

#0731AD

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein patented this color to maintain its unique identity. It's renowned for its intense and almost velvety appearance, achieved through a specific matte synthetic resin binder that retains the pigment's brilliance. The color evokes feelings of depth, infinity, and the sublime, which aligned with Klein's artistic vision. This vibrant blue has transcended the art world, finding applications in fashion, design, and branding where its striking presence makes a powerful statement. Its unique history and visual impact contribute to its enduring appeal.

International Klein Blue (#0731AD) offers a vibrant and saturated hue, but its deep shade necessitates careful consideration for accessibility, particularly in web design. When using this color for text, it's crucial to pair it with light colors to ensure sufficient contrast, meeting WCAG guidelines for readability. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended against a white or very light background. Furthermore, avoid using #0731AD as the sole indicator for interactive elements or important information. Supplement it with text labels, icons, or other visual cues to accommodate users with color vision deficiencies. Thoughtful application of this intense blue can enhance visual appeal while maintaining inclusivity.

Shades

Digital Color Formats

RGB
7 49 173
RGB7 49 173
Red
Green
Blue
HSL
224.82deg 92.22% 35.29%
224.8292.2235.29HSL
Hue
Saturation
Lightness
HWB
224.82deg 2.75% 32.16%
224.822.7532.16HWB
Hue
Whiteness
Blackness
hex#0731AD
rgb7 49 173
hsl224.82deg 92.22% 35.29%
cmyk95.95% 71.68% 0% 32.16%
hwb224.82deg 2.75% 32.16%
xyz-d650.09 0.05 0.4
oklch0.3898 0.1997 264.05
oklab0.3898 -0.02 -0.2
CMYK
95.95% 71.68% 0% 32.16%
95.9571.68032.16CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.4
0.090.050.4XYZ
X
Y
Z
OKLCH
0.3898 0.1997 264.05
0.38980.1997264.05LCH
Lightness
Chroma
Hue
OKLAB
0.3898 -0.02 -0.2
0.3898-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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