International Klein Blue

#072AAD

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 registered this color as a trademark in 1957, although the trademark's validity has been disputed. IKB's visual impact comes from its heavy reliance on ultramarine pigment, as well as Klein's matte, synthetic resin binder, which retains the pigment's brilliance. It is often associated with depth, spirituality, and the boundless nature of the sky and sea. Its unique intensity and matte finish contribute to its distinctive and captivating appearance. In comparison to other blues, IKB has a much more intense effect. It's used in art and design for this reason.

International Klein Blue (#072AAD) presents some accessibility challenges due to its relatively low luminance. When used as a background color, it's crucial to ensure sufficient contrast with text or foreground elements. A light color like white or a very pale yellow would provide the necessary contrast for readability. Tools like the WebAIM Contrast Checker can be invaluable for verifying compliance with WCAG guidelines, specifically a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Consider providing alternative color schemes to cater to users with visual impairments. Additionally, avoid using this color as the sole means of conveying information, as users with color blindness may not be able to distinguish it effectively. Supplement color cues with text labels, icons, or other visual indicators to ensure inclusivity. Thoughtful consideration of these factors ensures a more accessible and user-friendly experience for all users.

Shades

Digital Color Formats

RGB
7 42 173
RGB7 42 173
Red
Green
Blue
HSL
227.35deg 92.22% 35.29%
227.3592.2235.29HSL
Hue
Saturation
Lightness
HWB
227.35deg 2.75% 32.16%
227.352.7532.16HWB
Hue
Whiteness
Blackness
hex#072AAD
rgb7 42 173
hsl227.35deg 92.22% 35.29%
cmyk95.95% 75.72% 0% 32.16%
hwb227.35deg 2.75% 32.16%
xyz-d650.08 0.05 0.4
oklch0.3786 0.2069 264.6
oklab0.3786 -0.02 -0.21
CMYK
95.95% 75.72% 0% 32.16%
95.9575.72032.16CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.05 0.4
0.080.050.4XYZ
X
Y
Z
OKLCH
0.3786 0.2069 264.6
0.37860.2069264.6LCH
Lightness
Chroma
Hue
OKLAB
0.3786 -0.02 -0.21
0.3786-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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