International Klein Blue

#0327A0

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the artist Yves Klein. The color's visual impact comes from its heavy reliance on ultramarine, as well as Klein's matte, synthetic resin binder that suspends the color pigment and allows the pigment to retain its original qualities. This particular shade of blue is renowned for its intensity and purity. Yves Klein registered this color as a trademark in 1957, although the trademark's enforceability has been questioned. IKB's unique matte finish differentiates it from other blues and enhances its visual impact. The color has since become a symbol of modern art and has been used in various applications, including fashion, design, and branding.

International Klein Blue, with its deep and saturated hue, presents some accessibility considerations for web developers. When using this color for text, it's crucial to ensure sufficient contrast against the background. Due to its darkness, a light-colored text is necessary to meet WCAG (Web Content Accessibility Guidelines) standards for readability. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Avoid using International Klein Blue for small text or interface elements if adequate contrast cannot be achieved. Consider providing alternative color schemes that offer better contrast for users with visual impairments. Tools like contrast checkers can help verify compliance with accessibility guidelines, ensuring content is accessible to a wider audience, including those with low vision or color blindness. Moreover, avoid using color as the sole means of conveying information; supplement it with text or icons.

Shades

Digital Color Formats

RGB
3 39 160
RGB3 39 160
Red
Green
Blue
HSL
226.24deg 96.32% 31.96%
226.2496.3231.96HSL
Hue
Saturation
Lightness
HWB
226.24deg 1.18% 37.25%
226.241.1837.25HWB
Hue
Whiteness
Blackness
hex#0327A0
rgb3 39 160
hsl226.24deg 96.32% 31.96%
cmyk98.13% 75.63% 0% 37.25%
hwb226.24deg 1.18% 37.25%
xyz-d650.07 0.04 0.34
oklch0.3582 0.1949 264.12
oklab0.3582 -0.02 -0.19
CMYK
98.13% 75.63% 0% 37.25%
98.1375.63037.25CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.04 0.34
0.070.040.34XYZ
X
Y
Z
OKLCH
0.3582 0.1949 264.12
0.35820.1949264.12LCH
Lightness
Chroma
Hue
OKLAB
0.3582 -0.02 -0.19
0.3582-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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