International Klein Blue

#0A20AA

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 essence of the sky and sea, resulting in a color known for its striking intensity and unique matte finish. IKB is achieved by suspending pure ultramarine pigment in a synthetic resin binder, which allows the pigment to retain its brilliance and depth. The color was officially patented by Klein in 1957. It has since become a significant color within the art world and design, symbolizing concepts like infinity, spirituality, and the immaterial. Its distinctiveness lies in its capacity to evoke profound emotional responses, distinguishing it from conventional blue shades.

The color #0A20AA, a deep shade of blue, presents certain accessibility challenges, especially when used as text against a white background. Its luminance is relatively low, resulting in a contrast ratio that may not meet WCAG (Web Content Accessibility Guidelines) standards, particularly for users with visual impairments. To ensure readability and inclusivity, it is crucial to pair this color with lighter shades for text or interface elements. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended. Consider using color contrast checkers to verify compliance. Additionally, relying solely on color to convey information should be avoided; supplementary cues like text labels or icons can enhance usability for users with color vision deficiencies. When using this color for interactive elements, ensure that hover and focus states provide sufficient visual distinction for keyboard users.

Shades

Digital Color Formats

RGB
10 32 170
RGB10 32 170
Red
Green
Blue
HSL
231.75 88.89% 35.29%
231.7588.8935.29HSL
Hue
Saturation
Lightness
HWB
231.75 3.92% 33.33%
231.753.9233.33HWB
Hue
Whiteness
Blackness
hex#0A20AA
rgb10 32 170
hsl231.75 88.89% 35.29%
cmyk94.12% 81.18% 0% 33.33%
hwb231.75 3.92% 33.33%
xyz7.9 4 38.39
CMYK
94.12% 81.18% 0% 33.33%
94.1281.18033.33CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.9 4 38.39
7.9438.39XYZ
X
Y
Z

Alternative colors

Applications

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