International Klein Blue

#083AA9

About International Klein Blue

International Klein Blue, or IKB, is a deep blue hue first mixed by the French artist Yves Klein. It's renowned for its intense color depth. Klein registered this color as a trademark in 1957, although the trademark was later allowed to lapse. IKB's vividness arises from its high concentration of pigment suspended in a synthetic resin, allowing the color to retain its intensity and matte texture. It is specifically a variant of ultramarine, a pigment traditionally derived from lapis lazuli. The unique qualities of IKB made it a prominent feature in Klein's monochrome paintings and sculptures. This color transcends mere aesthetics; it became an integral part of Klein's artistic philosophy, representing infinity, freedom, and the immaterial. Today, International Klein Blue continues to influence artists, designers, and fashion professionals, admired for its depth, emotional impact, and its connection to a pivotal figure in art history.

The hex color #083AA9, also known as International Klein Blue, presents significant accessibility challenges, especially in web design. Its dark hue results in low contrast against lighter backgrounds, which is crucial for users with visual impairments. According to WCAG guidelines, sufficient contrast ratios are necessary for text and interactive elements to ensure readability and usability. Using #083AA9 for text on a white background, for instance, would likely fail accessibility standards. To improve accessibility, consider pairing it with much lighter colors like #FFFFFF, #F0F0F0, or other pale shades to achieve a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Additionally, avoid using this color as the sole means to convey information, such as in error messages or status indicators. Supplement color with text labels or icons to ensure users who are colorblind or have low vision can understand the content. Providing alternative high-contrast themes can also significantly enhance the accessibility of your website or application for all users.

Shades

Digital Color Formats

RGB
8 58 169
RGB8 58 169
Red
Green
Blue
HSL
221.37deg 90.96% 34.71%
221.3790.9634.71HSL
Hue
Saturation
Lightness
HWB
221.37deg 3.14% 33.73%
221.373.1433.73HWB
Hue
Whiteness
Blackness
hex#083AA9
rgb8 58 169
hsl221.37deg 90.96% 34.71%
cmyk95.27% 65.68% 0% 33.73%
hwb221.37deg 3.14% 33.73%
xyz-d650.09 0.06 0.38
oklch0.4018 0.1843 262.92
oklab0.4018 -0.02 -0.18
CMYK
95.27% 65.68% 0% 33.73%
95.2765.68033.73CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.38
0.090.060.38XYZ
X
Y
Z
OKLCH
0.4018 0.1843 262.92
0.40180.1843262.92LCH
Lightness
Chroma
Hue
OKLAB
0.4018 -0.02 -0.18
0.4018-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons