International Klein Blue

#0A29AA

About International Klein Blue

International Klein Blue, represented by the hexadecimal color code #0A29AA, is a deep and vibrant shade of blue renowned for its intensity. Developed by the French artist Yves Klein, this color was specifically formulated to achieve the maximum impact and saturation. Klein sought to capture the purest expression of blue, believing it to convey a sense of boundlessness and spiritual depth. The color is characterized by its ultramarine pigment and a matte, synthetic resin binder, which enhances its visual impact. Its unique formulation results in a captivating and visually striking hue widely used in art, design, and fashion to evoke feelings of creativity, innovation, and transcendence.

The color #0a29aa, also known as International Klein Blue, presents some accessibility challenges. Its relatively low luminance value of 0.042 means it falls short of the WCAG's minimum contrast ratio requirements for both small and large text against a white background. Specifically, the contrast ratio is only 4.9:1, which is below the 4.5:1 required for normal text and the 3:1 required for large text. This could pose readability issues for users with visual impairments. To improve accessibility, consider using a lighter background color or a brighter text color to increase the contrast ratio. Alternatively, you could adjust the color itself by lightening it slightly while maintaining its characteristic hue. Tools like contrast checkers can assist in determining appropriate color combinations that meet accessibility standards, ensuring a more inclusive user experience.

Shades

Digital Color Formats

RGB
10 41 170
RGB10 41 170
Red
Green
Blue
HSL
228.38deg 88.89% 35.29%
228.3888.8935.29HSL
Hue
Saturation
Lightness
HWB
228.38deg 3.92% 33.33%
228.383.9233.33HWB
Hue
Whiteness
Blackness
hex#0A29AA
rgb10 41 170
hsl228.38deg 88.89% 35.29%
cmyk94.12% 75.88% 0% 33.33%
hwb228.38deg 3.92% 33.33%
xyz-d650.08 0.05 0.38
oklch0.3743 0.2039 265.01
oklab0.3743 -0.02 -0.2
CMYK
94.12% 75.88% 0% 33.33%
94.1275.88033.33CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.05 0.38
0.080.050.38XYZ
X
Y
Z
OKLCH
0.3743 0.2039 265.01
0.37430.2039265.01LCH
Lightness
Chroma
Hue
OKLAB
0.3743 -0.02 -0.2
0.3743-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons