International Klein Blue

#0017B4

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein sought to create a blue that captured the purest expression of blue, intending to evoke a sense of boundlessness, immateriality and spiritual transcendence. This specific shade of blue was officially registered as a trademarked color in 1957. The visual impact is intense and captivating, often described as ultramarine, and is achieved by a specific mixture which comprises a matte, synthetic resin binder that allows the pigment to maintain its brilliance. Its unique composition contributes to the color's distinctive velvety texture, making it visually arresting and memorable. IKB has since become an iconic and influential color in art, design, and fashion.

International Klein Blue (#0017B4) presents accessibility challenges, particularly regarding color contrast. When used as a background, text must be a light color such as white or yellow to ensure sufficient contrast ratio, meeting WCAG guidelines for readability. Small text with this color on dark backgrounds would be illegible for some users, especially those with low vision or color blindness. It's crucial to test color combinations with accessibility tools to verify compliance and ensure that interactive elements like buttons and links have distinct visual cues. Consider providing alternative high-contrast themes or adjustable color settings to enhance the user experience for everyone. Adequate spacing between elements and clear typography further improves readability. Always prioritize inclusive design principles to cater to a diverse audience.

Shades

Digital Color Formats

RGB
0 23 180
RGB0 23 180
Red
Green
Blue
HSL
232.33 100% 35.29%
232.3310035.29HSL
Hue
Saturation
Lightness
HWB
232.33 0% 29.41%
232.33029.41HWB
Hue
Whiteness
Blackness
hex#0017B4
rgb0 23 180
hsl232.33 100% 35.29%
cmyk100% 87.22% 0% 29.41%
hwb232.33 0% 29.41%
xyz8.54 3.91 43.48
CMYK
100% 87.22% 0% 29.41%
10087.22029.41CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.54 3.91 43.48
8.543.9143.48XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

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