International Klein Blue

#0830A3

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. IKB's visual impact comes from its heavy reliance on ultramarine, as well as Klein's matte, synthetic resin binder, which suspends the color pigment and allows the pigment to maintain its original qualities. Yves Klein registered this color as a trademark in 1957. It is a vivid shade of blue that evokes feelings of depth, tranquility, and infinity. The color's unique matte finish further enhances its intensity and makes it stand out from other shades of blue. It's a color that has found applications across various fields, including art, design, and even branding, thanks to its distinctive and memorable appearance.

The hex color #0830A3, also known as International Klein Blue, presents some accessibility challenges, particularly in web design. Its darkness means that text rendered in this color requires a very light background to ensure sufficient contrast for readability. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text to meet AA compliance. Using #0830A3 for text on a white background may not meet these ratios, potentially making content difficult to read for users with visual impairments. Therefore, designers should carefully consider the background color and text size, or use this color sparingly for decorative elements rather than essential text. Providing alternative high-contrast themes can also improve accessibility.

Shades

Digital Color Formats

RGB
8 48 163
RGB8 48 163
Red
Green
Blue
HSL
224.52deg 90.64% 33.53%
224.5290.6433.53HSL
Hue
Saturation
Lightness
HWB
224.52deg 3.14% 36.08%
224.523.1436.08HWB
Hue
Whiteness
Blackness
hex#0830A3
rgb8 48 163
hsl224.52deg 90.64% 33.53%
cmyk95.09% 70.55% 0% 36.08%
hwb224.52deg 3.14% 36.08%
xyz-d650.08 0.05 0.35
oklch0.3774 0.1882 264.04
oklab0.3774 -0.02 -0.19
CMYK
95.09% 70.55% 0% 36.08%
95.0970.55036.08CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.05 0.35
0.080.050.35XYZ
X
Y
Z
OKLCH
0.3774 0.1882 264.04
0.37740.1882264.04LCH
Lightness
Chroma
Hue
OKLAB
0.3774 -0.02 -0.19
0.3774-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons