International Klein Blue

#072DAD

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 retains the pigment's full intensity and gives the color its particular velvety aspect. This color is perceived as a pure expression of blue, often associated with depth, spirituality, and the infinite. In hexadecimal format, IKB is represented as #072DAD.

The color #072DAD, also known as International Klein Blue, presents several accessibility considerations for web developers. Due to its deep and saturated nature, it offers low luminance. When used as a background, it demands very light text to ensure sufficient contrast, ideally meeting WCAG AA or AAA standards. Using a contrast checker is crucial to verify compliance. Avoid pairing it with similar dark or mid-tone colors for text or interactive elements, as this would reduce readability and usability, especially for users with visual impairments. Using this color thoughtfully is vital for creating inclusive and accessible digital experiences. Ensuring proper color contrast with text and interactive elements is essential to meet accessibility guidelines and provide an equitable experience for all users.

Shades

Digital Color Formats

RGB
7 45 173
RGB7 45 173
Red
Green
Blue
HSL
226.27deg 92.22% 35.29%
226.2792.2235.29HSL
Hue
Saturation
Lightness
HWB
226.27deg 2.75% 32.16%
226.272.7532.16HWB
Hue
Whiteness
Blackness
hex#072DAD
rgb7 45 173
hsl226.27deg 92.22% 35.29%
cmyk95.95% 73.99% 0% 32.16%
hwb226.27deg 2.75% 32.16%
xyz-d650.09 0.05 0.4
oklch0.3833 0.2039 264.39
oklab0.3833 -0.02 -0.2
CMYK
95.95% 73.99% 0% 32.16%
95.9573.99032.16CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.4
0.090.050.4XYZ
X
Y
Z
OKLCH
0.3833 0.2039 264.39
0.38330.2039264.39LCH
Lightness
Chroma
Hue
OKLAB
0.3833 -0.02 -0.2
0.3833-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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