International Klein Blue

#0225C8

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 registered this color as a trademark in 1957, although the trademark's validity has been debated. The color's visual impact comes from its heavy reliance on ultramarine pigment, as well as Klein's matte, synthetic resin binder, which suspends the pigment and allows the color to achieve its maximum luminosity. IKB is highly regarded for its intensity and purity, making it a favorite among artists and designers. The color evokes feelings of tranquility, depth, and infinity, contributing to its enduring appeal across various creative disciplines. It's important to note that the exact replication of IKB can be challenging due to the specific materials and mixing techniques employed by Klein.

The color #0225C8, a deep and vibrant blue, presents some accessibility challenges, especially in text-based applications. Its low luminance of 2.45 makes it difficult to achieve sufficient contrast with lighter background colors like white or pale yellow. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text to ensure readability for users with visual impairments. When using #0225C8 for text, it's essential to pair it with very light colors to meet these contrast requirements. For larger graphical elements, the contrast requirements are somewhat relaxed, allowing for more flexibility in color choices. Tools like contrast checkers can help assess the contrast ratio between #0225C8 and other colors to ensure compliance with accessibility standards. Also, consider providing alternative ways to convey information beyond just color, such as using icons or text labels, to enhance accessibility for all users.

Shades

Digital Color Formats

RGB
2 37 200
RGB2 37 200
Red
Green
Blue
HSL
229.39deg 98.02% 39.61%
229.3998.0239.61HSL
Hue
Saturation
Lightness
HWB
229.39deg 0.78% 21.57%
229.390.7821.57HWB
Hue
Whiteness
Blackness
hex#0225C8
rgb2 37 200
hsl229.39deg 98.02% 39.61%
cmyk99% 81.5% 0% 21.57%
hwb229.39deg 0.78% 21.57%
xyz-d650.11 0.06 0.55
oklch0.4033 0.2428 264.35
oklab0.4033 -0.02 -0.24
CMYK
99% 81.5% 0% 21.57%
9981.5021.57CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.06 0.55
0.110.060.55XYZ
X
Y
Z
OKLCH
0.4033 0.2428 264.35
0.40330.2428264.35LCH
Lightness
Chroma
Hue
OKLAB
0.4033 -0.02 -0.24
0.4033-0.02-0.24LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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