International Klein Blue

#0722C3

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 patented this color in 1957. What sets IKB apart is its matte finish, which enhances the color's intensity. The lack of gloss allows the pigment to appear more pure and saturated. The visual effect of IKB is often described as transporting or immersive, attributed to its intense depth and perceived infinity. The color is visually striking. Klein used this color in many of his paintings, sculptures, and performances. It continues to inspire artists, designers, and researchers. The color represents the boundless imagination and freedom of expression.

The hex color #0722C3, also known as International Klein Blue, presents significant accessibility challenges, particularly in web design. Its very low luminance value (close to black) means that using it as a background color necessitates extremely light text to achieve sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text to ensure readability for users with visual impairments. Given its darkness, meeting these ratios can be difficult. Furthermore, consider individuals with color vision deficiencies. While the pure blue hue might be distinguishable for some, relying solely on color to convey information is not advisable. Always provide redundant cues, such as text labels or icons, to ensure inclusivity. Thorough testing with accessibility evaluation tools is crucial to validate the color's usability across different user groups and devices.

Shades

Digital Color Formats

RGB
7 34 195
RGB7 34 195
Red
Green
Blue
HSL
231.38deg 93.07% 39.61%
231.3893.0739.61HSL
Hue
Saturation
Lightness
HWB
231.38deg 2.75% 23.53%
231.382.7523.53HWB
Hue
Whiteness
Blackness
hex#0722C3
rgb7 34 195
hsl231.38deg 93.07% 39.61%
cmyk96.41% 82.56% 0% 23.53%
hwb231.38deg 2.75% 23.53%
xyz-d650.11 0.05 0.52
oklch0.3946 0.2389 264.9
oklab0.3946 -0.02 -0.24
CMYK
96.41% 82.56% 0% 23.53%
96.4182.56023.53CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.05 0.52
0.110.050.52XYZ
X
Y
Z
OKLCH
0.3946 0.2389 264.9
0.39460.2389264.9LCH
Lightness
Chroma
Hue
OKLAB
0.3946 -0.02 -0.24
0.3946-0.02-0.24LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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