International Klein Blue

#0414B0

About International Klein Blue

The hex color #0414B0, often referred to as International Klein Blue (IKB), is a deep and intense shade of blue. It was developed by the French artist Yves Klein, who sought to create a blue that would capture the purest expression of the color. Chemically, IKB is a matte ultramarine pigment, which gives it a unique visual depth and intensity that stands out from other blues. The color has been registered as a trademark by the artist's estate. Because of its unique visual effect, IKB has been used in many fine art applications. Its use extends to other fields like fashion, product design, and even branding, where its striking and memorable qualities are highly valued.

The hex color #0414B0, also known as International Klein Blue, presents significant accessibility challenges, especially in web design. Its deep, saturated hue results in very low luminance, which means text rendered in this color against a white background (or vice versa) may fail WCAG (Web Content Accessibility Guidelines) standards for contrast ratio. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using this color for text is not advisable without careful consideration. It's better suited for decorative elements or backgrounds where text is not required. If used for interactive elements like buttons, sufficient contrast is crucial to ensure usability for individuals with visual impairments. Careful adjustment to the text and background colors are crucial to meet accessibility standards.

Shades

Digital Color Formats

RGB
4 20 176
RGB4 20 176
Red
Green
Blue
HSL
234.42 95.56% 35.29%
234.4295.5635.29HSL
Hue
Saturation
Lightness
HWB
234.42 1.57% 30.98%
234.421.5730.98HWB
Hue
Whiteness
Blackness
hex#0414B0
rgb4 20 176
hsl234.42 95.56% 35.29%
cmyk97.73% 88.64% 0% 30.98%
hwb234.42 1.57% 30.98%
xyz8.14 3.66 41.35
CMYK
97.73% 88.64% 0% 30.98%
97.7388.64030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.14 3.66 41.35
8.143.6641.35XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

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