International Klein Blue

#0734AD

General Information 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 created IKB as part of his search to find a color that would best represent his concepts of pure idea and spirituality. The visual effect of IKB comes from its heavy reliance on ultramarine pigment, as well as Klein's technique of suspending the raw pigment in a clear synthetic resin. This technique allowed the pigment to maintain its intensity and original qualities. The color, officially patented by Klein, is celebrated for its unique saturation and the sense of depth it conveys. Because of its cultural impact, the color remains highly influential in art, design, and fashion, often associated with creativity, innovation, and transcendence. It has also appeared in popular media and has been used by brands.

The color #0734AD, also known as International Klein Blue, presents some accessibility challenges, particularly in text-based contexts. Due to its dark hue and relatively low luminance, using it as a text color on a white background can result in insufficient contrast, making it difficult for users with visual impairments to read. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. #0734AD often falls short of these recommendations when paired with lighter backgrounds. To enhance accessibility, consider using #0734AD sparingly for decorative elements, or use it with very light text, such as white (#FFFFFF). Also consider adding a stronger background when using #0734AD as text. Always test color combinations with accessibility tools to ensure compliance with accessibility standards and optimal readability for all users.

Shades

Digital Color Formats

RGB
7 52 173
RGB7 52 173
Red
Green
Blue
HSL
223.73deg 92.22% 35.29%
223.7392.2235.29HSL
Hue
Saturation
Lightness
HWB
223.73deg 2.75% 32.16%
223.732.7532.16HWB
Hue
Whiteness
Blackness
hex#0734AD
rgb7 52 173
hsl223.73deg 92.22% 35.29%
cmyk95.95% 69.94% 0% 32.16%
hwb223.73deg 2.75% 32.16%
xyz-d650.09 0.06 0.4
oklch0.3949 0.1964 263.75
oklab0.3949 -0.02 -0.2
CMYK
95.95% 69.94% 0% 32.16%
95.9569.94032.16CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.4
0.090.060.4XYZ
X
Y
Z
OKLCH
0.3949 0.1964 263.75
0.39490.1964263.75LCH
Lightness
Chroma
Hue
OKLAB
0.3949 -0.02 -0.2
0.3949-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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