International Klein Blue

#1119B9

General Information about International Klein Blue

International Klein Blue, represented by the hexadecimal color code #1119b9, is a deep and intense shade of blue renowned for its unique visual impact. This color gained prominence through the work of French artist Yves Klein, who sought to capture the purest expression of blue. Klein collaborated with a chemist to develop a matte, ultramarine pigment that would maintain its vibrancy and depth. The color was officially patented as International Klein Blue (IKB) in 1957. IKB is characterized by its profound saturation and ability to evoke feelings of boundlessness and serenity. In the RGB color model, #1119b9 is composed of 6.67% red, 9.8% green, and 72.55% blue. Its distinctive properties have made it a favored choice in art, design, and branding, where its striking appearance can command attention and convey a sense of sophistication and depth. Because of it's high saturation, it is not suitable for every application.

The hex color #1119b9, also known as International Klein Blue, presents significant accessibility challenges, especially in web design. Its dark and highly saturated nature results in a low contrast ratio with lighter text colors like white or pale yellow. According to WCAG guidelines, sufficient contrast is crucial for users with visual impairments to perceive content effectively. To ensure accessibility, it is recommended to pair #1119b9 with very light colors to increase the contrast ratio to at least 4.5:1 for normal text and 3:1 for large text. Alternatively, using #1119b9 primarily for decorative elements rather than essential text or interactive components can minimize accessibility concerns. Tools like contrast checkers can help determine appropriate color pairings to meet accessibility standards and provide an inclusive user experience. Consider using a lighter shade of blue to increase contrast.

Shades

Digital Color Formats

RGB
17 25 185
RGB17 25 185
Red
Green
Blue
HSL
237.14deg 83.17% 39.61%
237.1483.1739.61HSL
Hue
Saturation
Lightness
HWB
237.14deg 6.67% 27.45%
237.146.6727.45HWB
Hue
Whiteness
Blackness
hex#1119B9
rgb17 25 185
hsl237.14deg 83.17% 39.61%
cmyk90.81% 86.49% 0% 27.45%
hwb237.14deg 6.67% 27.45%
xyz-d650.09 0.04 0.46
oklch0.3749 0.2326 266.43
oklab0.3749 -0.01 -0.23
CMYK
90.81% 86.49% 0% 27.45%
90.8186.49027.45CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.04 0.46
0.090.040.46XYZ
X
Y
Z
OKLCH
0.3749 0.2326 266.43
0.37490.2326266.43LCH
Lightness
Chroma
Hue
OKLAB
0.3749 -0.01 -0.23
0.3749-0.01-0.23LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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