International Klein Blue

#002CB4

About International Klein Blue

International Klein Blue (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 as much of its original qualities as possible. Yves Klein registered this recipe as a trademark under the name International Klein Blue (IKB) in 1957. It's a specific shade of blue that is renowned for its intensity and depth. This color has been widely adopted in art, design, and fashion for its unique visual properties. Its vibrant and pure nature makes it a popular choice for creating bold and impactful designs.

The color #002CB4, also known as International Klein Blue, presents significant accessibility challenges, particularly regarding contrast. When used as a foreground color for text, it requires a very light background to meet WCAG (Web Content Accessibility Guidelines) standards for readability. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Given the darkness of #002CB4, pairing it with colors like white (#FFFFFF) or very light shades of gray is essential. Using color contrast checker tools is advisable to ensure compliance. Moreover, avoid using this color as the sole indicator of interactive elements like links, as colorblind users might not perceive them. Providing additional cues such as underlines or icons is crucial. When using it for graphical elements, ensure that important information isn't conveyed solely through color, offering alternative visual cues for users with visual impairments. This ensures an inclusive experience for all users.

Shades

Digital Color Formats

RGB
0 44 180
RGB0 44 180
Red
Green
Blue
HSL
225.33 100% 35.29%
225.3310035.29HSL
Hue
Saturation
Lightness
HWB
225.33 0% 29.41%
225.33029.41HWB
Hue
Whiteness
Blackness
hex#002CB4
rgb0 44 180
hsl225.33 100% 35.29%
cmyk100% 75.56% 0% 29.41%
hwb225.33 0% 29.41%
xyz9.14 5.1 43.68
CMYK
100% 75.56% 0% 29.41%
10075.56029.41CMYK
Cyan
Magenta
Yellow
Key
XYZ
9.14 5.1 43.68
9.145.143.68XYZ
X
Y
Z

Alternative colors

Applications

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