International Klein Blue

#0B32A9

About International Klein Blue

International Klein Blue, often referred to as IKB, is a deep blue hue first mixed by the French artist Yves Klein. It is renowned for its intense color depth and was specifically created to visually represent Klein's concept of the infinite and immaterial. The color was synthetically created and then patented by Klein in 1957. IKB's vividness stems from its reliance on a matte, synthetic resin binder which allows the pigment to retain its intensity. This distinct blue has found application across diverse creative fields, including art, fashion, and design. Its unique historical context and powerful visual presence have solidified its place as a culturally significant color.

The hex color #0b32a9, also known as International Klein Blue, presents some accessibility challenges, primarily due to its dark hue. When used as a background color, it necessitates very light text (white or near-white) to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. It's essential to verify that any text placed on this background meets these contrast requirements to accommodate users with visual impairments. Using color contrast analyzers, readily available online, can help ensure compliance. Moreover, avoid relying solely on color to convey information, as colorblind users may not be able to distinguish this blue effectively. Supplement color cues with text labels or icons to provide alternative ways to understand the content.

Shades

Digital Color Formats

RGB
11 50 169
RGB11 50 169
Red
Green
Blue
HSL
225.19deg 87.78% 35.29%
225.1987.7835.29HSL
Hue
Saturation
Lightness
HWB
225.19deg 4.31% 33.73%
225.194.3133.73HWB
Hue
Whiteness
Blackness
hex#0B32A9
rgb11 50 169
hsl225.19deg 87.78% 35.29%
cmyk93.49% 70.41% 0% 33.73%
hwb225.19deg 4.31% 33.73%
xyz-d650.08 0.05 0.38
oklch0.3879 0.1931 264.33
oklab0.3879 -0.02 -0.19
CMYK
93.49% 70.41% 0% 33.73%
93.4970.41033.73CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.05 0.38
0.080.050.38XYZ
X
Y
Z
OKLCH
0.3879 0.1931 264.33
0.38790.1931264.33LCH
Lightness
Chroma
Hue
OKLAB
0.3879 -0.02 -0.19
0.3879-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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