International Klein Blue

#0735B0

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. The color's visual impact stems from its heavy reliance on ultramarine pigment, as well as Klein's matte, synthetic resin binder, which maintains the pigment's intensity. It's not just a color but a cultural phenomenon, symbolizing the boundless space and spirituality that Klein sought to capture in his monochromatic paintings and sculptures. Its uniqueness arises from the ultramarine pigment and matte binder, setting it apart from common blues and capturing the essence of Klein's artistic vision. IKB's impact transcends art; the color has influenced fashion, interior design, and even technology, reflecting its captivating allure and symbolic significance.

The hex color #0735B0, also known as International Klein Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value of 7 means that text rendered in white on this background would meet only the minimum contrast ratio requirements for WCAG AA compliance, and fails the stricter AAA standards. Therefore, web developers should exercise extreme caution when using this color. To ensure inclusivity, it is vital to pair this vibrant blue with very light foreground colors, such as white or very pale yellow, and to test the contrast ratio using accessibility tools. When using #0735B0 for interactive elements such as buttons or links, provide additional visual cues like underlines or borders to enhance distinguishability, especially for users who may not perceive color accurately. Furthermore, consider providing alternative color schemes that offer better contrast for users with specific accessibility needs.

Shades

Digital Color Formats

RGB
7 53 176
RGB7 53 176
Red
Green
Blue
HSL
223.67deg 92.35% 35.88%
223.6792.3535.88HSL
Hue
Saturation
Lightness
HWB
223.67deg 2.75% 30.98%
223.672.7530.98HWB
Hue
Whiteness
Blackness
hex#0735B0
rgb7 53 176
hsl223.67deg 92.35% 35.88%
cmyk96.02% 69.89% 0% 30.98%
hwb223.67deg 2.75% 30.98%
xyz-d650.09 0.06 0.42
oklch0.3998 0.199 263.73
oklab0.3998 -0.02 -0.2
CMYK
96.02% 69.89% 0% 30.98%
96.0269.89030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.42
0.090.060.42XYZ
X
Y
Z
OKLCH
0.3998 0.199 263.73
0.39980.199263.73LCH
Lightness
Chroma
Hue
OKLAB
0.3998 -0.02 -0.2
0.3998-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons