International Klein Blue

#0029B3

About International Klein Blue

International Klein Blue (IKB), identified by the hex code #0029B3, is a deep, vivid shade of blue first mixed by the French artist Yves Klein. Klein sought to capture the purest expression of blue, believing it conveyed a sense of infinite space and spiritual depth. He registered the color as a trademark in 1957, solidifying its place in art history. IKB is created using a synthetic ultramarine pigment, which enhances its intensity and matte finish. This unique pigment allows for a strong visual impact, making it a favorite among artists and designers seeking to evoke feelings of transcendence and awe. Its distinctive appearance has cemented its place in the art world, representing creativity and artistic freedom.

The hex color #0029b3, also known as International Klein Blue, presents some accessibility challenges, particularly in web design. Due to its deep, saturated hue and low lightness value, it offers insufficient contrast when paired with lighter colors like white or yellow. This can make text or interactive elements difficult to read for users with visual impairments, including those with low vision or color blindness. To ensure inclusivity, it's crucial to use this color judiciously. Web developers should avoid using it as a primary text color on light backgrounds. When using #0029b3 for backgrounds, sufficient contrast can be achieved by using white or other very light hues for text. Accessibility evaluation tools should be used to evaluate contrast ratios and ensure compliance with WCAG guidelines. Providing alternative color schemes can further enhance accessibility, allowing users to choose options that better suit their visual needs.

Shades

Digital Color Formats

RGB
0 41 179
RGB0 41 179
Red
Green
Blue
HSL
226.26deg 100% 35.1%
226.2610035.1HSL
Hue
Saturation
Lightness
HWB
226.26deg 0% 29.8%
226.26029.8HWB
Hue
Whiteness
Blackness
hex#0029B3
rgb0 41 179
hsl226.26deg 100% 35.1%
cmyk100% 77.09% 0% 29.8%
hwb226.26deg 0% 29.8%
xyz-d650.09 0.05 0.43
oklch0.3828 0.2159 263.88
oklab0.3828 -0.02 -0.21
CMYK
100% 77.09% 0% 29.8%
10077.09029.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.43
0.090.050.43XYZ
X
Y
Z
OKLCH
0.3828 0.2159 263.88
0.38280.2159263.88LCH
Lightness
Chroma
Hue
OKLAB
0.3828 -0.02 -0.21
0.3828-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons