International Klein Blue

#0433B0

About International Klein Blue

International Klein Blue, with the hex code #0433B0, is a deep and intense shade of blue named after the French artist Yves Klein, who patented the color in 1957. Klein sought to capture the purest expression of blue, believing it represented boundless space and spirituality. This color is a vibrant ultramarine hue, characterized by its high saturation and luminosity. In the RGB color model, it is composed of 1.6% red, 20% green, and 69% blue. It is also known for its use in fine art, particularly in Klein's monochromatic paintings and sculptures. The color has gained recognition in other creative fields, including fashion, design, and web development. This distinctive blue has cultural associations with art, innovation, and uniqueness.

The hex color #0433B0, also known as International Klein Blue, presents some accessibility challenges, particularly for users with visual impairments. Its dark hue means that text rendered in this color requires a very light background to ensure sufficient contrast. 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. When using #0433B0 for text or interactive elements, it's crucial to test the color contrast using accessibility evaluation tools to verify compliance. Also, avoid using this color as the sole indicator of interactive elements. Supplement it with other visual cues, such as underlines or icons, to ensure usability for all users. Proper attention to color contrast will make web content more accessible and inclusive.

Shades

Digital Color Formats

RGB
4 51 176
RGB4 51 176
Red
Green
Blue
HSL
223.6deg 95.56% 35.29%
223.695.5635.29HSL
Hue
Saturation
Lightness
HWB
223.6deg 1.57% 30.98%
223.61.5730.98HWB
Hue
Whiteness
Blackness
hex#0433B0
rgb4 51 176
hsl223.6deg 95.56% 35.29%
cmyk97.73% 71.02% 0% 30.98%
hwb223.6deg 1.57% 30.98%
xyz-d650.09 0.06 0.42
oklch0.3958 0.2016 263.6
oklab0.3958 -0.02 -0.2
CMYK
97.73% 71.02% 0% 30.98%
97.7371.02030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.42
0.090.060.42XYZ
X
Y
Z
OKLCH
0.3958 0.2016 263.6
0.39580.2016263.6LCH
Lightness
Chroma
Hue
OKLAB
0.3958 -0.02 -0.2
0.3958-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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