International Klein Blue

#032FB1

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 patented this color in 1957. IKB's remarkable intensity and purity are achieved through a unique formulation that involves suspending ultramarine pigment in a synthetic resin binder, allowing the pigment to retain its brilliance. The color's unique quality made it a significant part of Klein's artistic exploration, representing his interpretation of the infinite and the immaterial. Today, IKB is revered for its captivating and unique aesthetic, it holds a place in art history, and it continues to inspire creative endeavors across various fields, from graphic design to fashion.

International Klein Blue (#032FB1) presents a challenge for accessibility due to its deep, saturated hue, which can result in low contrast when paired with certain colors, especially lighter shades. According to WCAG guidelines, sufficient contrast between text and background is crucial for readability, particularly for users with visual impairments. For normal text (14 points or 18 pixels and larger), the contrast ratio should be at least 4.5:1. For large text (18 points or 24 pixels and larger) and graphics, a contrast ratio of 3:1 is required. When using IKB, it is advisable to avoid pairing it with light yellows, pale greens, or light blues. Opting for white text on IKB may not always pass accessibility checks, so careful evaluation is necessary. Dark shades of gray or highly contrasting colors like white or light yellow will significantly improve readability. Tools like contrast checkers are essential for web developers to ensure compliance with accessibility standards and provide an inclusive user experience.

Shades

Digital Color Formats

RGB
3 47 177
RGB3 47 177
Red
Green
Blue
HSL
224.83deg 96.67% 35.29%
224.8396.6735.29HSL
Hue
Saturation
Lightness
HWB
224.83deg 1.18% 30.59%
224.831.1830.59HWB
Hue
Whiteness
Blackness
hex#032FB1
rgb3 47 177
hsl224.83deg 96.67% 35.29%
cmyk98.31% 73.45% 0% 30.59%
hwb224.83deg 1.18% 30.59%
xyz-d650.09 0.05 0.42
oklch0.3902 0.2072 263.85
oklab0.3902 -0.02 -0.21
CMYK
98.31% 73.45% 0% 30.59%
98.3173.45030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.42
0.090.050.42XYZ
X
Y
Z
OKLCH
0.3902 0.2072 263.85
0.39020.2072263.85LCH
Lightness
Chroma
Hue
OKLAB
0.3902 -0.02 -0.21
0.3902-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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