International Klein Blue

#0224C8

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. Klein patented this specific shade of blue to maintain its unique and powerful presence in his art. It's characterized by its intense saturation and matte finish, which enhances its visual impact. The color is achieved through a specific formulation involving a synthetic ultramarine pigment suspended in a clear resin binder. IKB is more than just a color; it's a statement, representing a sense of boundlessness and transcendence. Yves Klein believed that this particular blue could convey a sense of the infinite, capturing the essence of the sky and the sea. Its distinctive character has made it a significant part of art history and continues to inspire artists and designers.

The color #0224C8, also known as International Klein Blue, presents some accessibility challenges, especially concerning text legibility. Due to its deep, saturated nature and low luminance, it offers poor contrast against similarly dark shades. When used as a background color, pairing it with light text (white or very pale yellows) is crucial to ensure readability. Tools like contrast checkers are essential to confirm compliance with WCAG standards, aiming for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Consideration should also be given to users with visual impairments; providing alternative color schemes or allowing customization can enhance accessibility. Furthermore, avoid using this color as the sole indicator of interactive elements, as colorblind users may struggle to differentiate it. Supplement it with labels, icons, or other visual cues.

Shades

Digital Color Formats

RGB
2 36 200
RGB2 36 200
Red
Green
Blue
HSL
229.7deg 98.02% 39.61%
229.798.0239.61HSL
Hue
Saturation
Lightness
HWB
229.7deg 0.78% 21.57%
229.70.7821.57HWB
Hue
Whiteness
Blackness
hex#0224C8
rgb2 36 200
hsl229.7deg 98.02% 39.61%
cmyk99% 82% 0% 21.57%
hwb229.7deg 0.78% 21.57%
xyz-d650.11 0.05 0.55
oklch0.4022 0.2435 264.36
oklab0.4022 -0.02 -0.24
CMYK
99% 82% 0% 21.57%
9982021.57CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.05 0.55
0.110.050.55XYZ
X
Y
Z
OKLCH
0.4022 0.2435 264.36
0.40220.2435264.36LCH
Lightness
Chroma
Hue
OKLAB
0.4022 -0.02 -0.24
0.4022-0.02-0.24LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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