International Klein Blue

#0434B0

About International Klein Blue

International Klein Blue, represented by the hex code #0434B0, is a deep and vibrant shade of blue. It is named after the French artist Yves Klein, who patented the color in 1957. Klein specifically chose this ultramarine shade for its intense, pure quality, believing it best conveyed his artistic concepts. The color is created by suspending pure ultramarine pigment in a synthetic resin, which allows the pigment to maintain its brilliance. International Klein Blue is renowned for its captivating and immersive qualities, often associated with depth, spirituality, and the infinite. It has become a symbol of innovation and artistic expression, widely used in both art and design.

The hex color #0434B0, also known as International Klein Blue, presents some accessibility challenges, particularly in text-based applications. Its dark hue means that it requires light-colored text (white or very light shades of yellow or gray) to ensure sufficient contrast for readability. According to WCAG guidelines, the contrast ratio between the text and background should be at least 4.5:1 for normal text and 3:1 for large text. Using a color contrast checker is crucial to verify compliance. Avoid pairing #0434B0 with mid-tone or dark colors, as this will result in insufficient contrast and make it difficult for users with visual impairments to read the content. Consider providing alternative color schemes or a user-adjustable contrast setting to accommodate different visual needs. Furthermore, avoid using color alone to convey important information; always provide a text label or other visual cue.

Shades

Digital Color Formats

RGB
4 52 176
RGB4 52 176
Red
Green
Blue
HSL
223.26deg 95.56% 35.29%
223.2695.5635.29HSL
Hue
Saturation
Lightness
HWB
223.26deg 1.57% 30.98%
223.261.5730.98HWB
Hue
Whiteness
Blackness
hex#0434B0
rgb4 52 176
hsl223.26deg 95.56% 35.29%
cmyk97.73% 70.45% 0% 30.98%
hwb223.26deg 1.57% 30.98%
xyz-d650.09 0.06 0.42
oklch0.3975 0.2005 263.51
oklab0.3975 -0.02 -0.2
CMYK
97.73% 70.45% 0% 30.98%
97.7370.45030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.42
0.090.060.42XYZ
X
Y
Z
OKLCH
0.3975 0.2005 263.51
0.39750.2005263.51LCH
Lightness
Chroma
Hue
OKLAB
0.3975 -0.02 -0.2
0.3975-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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