International Klein Blue

#0226B3

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. IKB's visual impact comes from its heavy reliance on ultramarine pigment, as well as Klein's matte, synthetic resin binder, which maintains the pigment's intensity. The color's unique quality lies in its ability to evoke feelings of depth, infinity, and transcendence. Klein believed that this particular shade of blue captured the essence of pure space and was a vehicle for spiritual experience. Its distinctive properties have made it a popular choice in various creative fields. IKB is now widely recognized and used in diverse applications, from art and design to fashion and technology, continuing to captivate audiences with its profound visual presence and symbolic associations.

The hex color #0226B3, representing International Klein Blue (IKB), presents significant accessibility challenges, particularly in web design. Its very dark hue results in low contrast against standard white backgrounds, making text and interactive elements difficult to read for users with visual impairments. According to Web Content Accessibility Guidelines (WCAG), a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. IKB often falls far short of these recommendations, potentially excluding a considerable portion of users. To improve accessibility, designers should pair IKB with significantly lighter colors, rigorously testing contrast ratios using online tools. Alternatively, consider using IKB sparingly, perhaps as an accent color, rather than for primary text or interactive elements. Providing sufficient contrast ensures that content is perceivable and usable by individuals with varying visual abilities, promoting inclusivity and a positive user experience. Tools like the Accessible Color Palette Builder can help to find color combinations that meet WCAG standards.

Shades

Digital Color Formats

RGB
2 38 179
RGB2 38 179
Red
Green
Blue
HSL
227.8deg 97.79% 35.49%
227.897.7935.49HSL
Hue
Saturation
Lightness
HWB
227.8deg 0.78% 29.8%
227.80.7829.8HWB
Hue
Whiteness
Blackness
hex#0226B3
rgb2 38 179
hsl227.8deg 97.79% 35.49%
cmyk98.88% 78.77% 0% 29.8%
hwb227.8deg 0.78% 29.8%
xyz-d650.09 0.05 0.43
oklch0.379 0.2184 264.24
oklab0.379 -0.02 -0.22
CMYK
98.88% 78.77% 0% 29.8%
98.8878.77029.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.43
0.090.050.43XYZ
X
Y
Z
OKLCH
0.379 0.2184 264.24
0.3790.2184264.24LCH
Lightness
Chroma
Hue
OKLAB
0.379 -0.02 -0.22
0.379-0.02-0.22LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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