International Klein Blue

#0529AF

About International Klein Blue

International Klein Blue (IKB), identified by the hex code #0529AF, is a deep, vivid blue hue renowned for its intensity and visual impact. This particular shade of blue was developed by the French artist Yves Klein in collaboration with a Parisian paint dealer, Edouard Adam, specifically for Klein's monochrome paintings. Klein patented the color in 1957 to preserve its unique quality and ensure its consistent reproduction. The color's captivating effect stems from its high saturation and the matte finish of the paint, which maximizes the color's presence and minimizes distracting reflections. IKB is often associated with feelings of depth, transcendence, and the infinite. Its distinctive character has made it a popular choice in art, design, and fashion.

The color #0529AF, also known as International Klein Blue, presents significant accessibility challenges, particularly in web design. Its dark hue results in a low luminance value, which can make it difficult for users with visual impairments to distinguish text or elements against backgrounds of similar darkness. To ensure accessibility, it's crucial to use this color with high contrast ratios. For instance, pairing it with white or a very light yellow can significantly improve readability. WCAG guidelines recommend a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Developers should use contrast checkers to verify compliance. Moreover, avoid using #0529AF for interactive elements without clear visual cues, as color alone should not convey meaning. Consider adding text labels or icons to enhance usability for all users, including those with color vision deficiencies.

Shades

Digital Color Formats

RGB
5 41 175
RGB5 41 175
Red
Green
Blue
HSL
227.29deg 94.44% 35.29%
227.2994.4435.29HSL
Hue
Saturation
Lightness
HWB
227.29deg 1.96% 31.37%
227.291.9631.37HWB
Hue
Whiteness
Blackness
hex#0529AF
rgb5 41 175
hsl227.29deg 94.44% 35.29%
cmyk97.14% 76.57% 0% 31.37%
hwb227.29deg 1.96% 31.37%
xyz-d650.09 0.05 0.41
oklch0.3791 0.2105 264.43
oklab0.3791 -0.02 -0.21
CMYK
97.14% 76.57% 0% 31.37%
97.1476.57031.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.41
0.090.050.41XYZ
X
Y
Z
OKLCH
0.3791 0.2105 264.43
0.37910.2105264.43LCH
Lightness
Chroma
Hue
OKLAB
0.3791 -0.02 -0.21
0.3791-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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