International Klein Blue

#003BA7

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 sought to create a blue that captured the purest expression of blue itself, unburdened by associations. The color achieves its intensity through a unique matte, synthetic resin binder that allows the pigment to retain its vibrancy. IKB is not simply a color; it's a statement, an emotion. The color is now trademarked. In color theory, it has high cultural impact and use in branding and visual arts.

The hex color #003BA7, also known as International Klein Blue, presents specific accessibility considerations for web design. With its deep, saturated hue, it requires careful selection of contrasting colors for text and interactive elements to ensure readability and usability, as defined by WCAG guidelines. A light color, such as white or a pale yellow, as foreground text on a background of #003BA7 would provide sufficient contrast. Insufficient contrast can cause eye strain and make content inaccessible to users with visual impairments. When using this color, tools that verify color contrast ratios should be used to check that your website meets accessibility standards, ensuring inclusive user experience.

Shades

Digital Color Formats

RGB
0 59 167
RGB0 59 167
Red
Green
Blue
HSL
218.8deg 100% 32.75%
218.810032.75HSL
Hue
Saturation
Lightness
HWB
218.8deg 0% 34.51%
218.8034.51HWB
Hue
Whiteness
Blackness
hex#003BA7
rgb0 59 167
hsl218.8deg 100% 32.75%
cmyk100% 64.67% 0% 34.51%
hwb218.8deg 0% 34.51%
xyz-d650.09 0.06 0.37
oklch0.4004 0.1816 261.75
oklab0.4004 -0.03 -0.18
CMYK
100% 64.67% 0% 34.51%
10064.67034.51CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.37
0.090.060.37XYZ
X
Y
Z
OKLCH
0.4004 0.1816 261.75
0.40040.1816261.75LCH
Lightness
Chroma
Hue
OKLAB
0.4004 -0.03 -0.18
0.4004-0.03-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons