International Klein Blue

#0024BA

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. Klein created this vivid shade of blue to represent as best as possible the pure idea of blue; all that which is immaterial and evocative of the sea and sky. The visual impact of IKB comes from its heavy reliance on ultramarine, combined with Klein's matte, synthetic resin binder, which suspends the pigment and allows the color to retain its brilliance. Due to the binder, the pigment is not getting covered, staying pure and intensive. IKB is recognized for its intensity and depth, making it a popular choice in art, design, and fashion to evoke feelings of creativity, depth, and sophistication. The color is so iconic that it was eventually patented by Klein, solidifying its place in art history and the chromatic spectrum.

The hex color #0024ba, also known as International Klein Blue, presents some accessibility challenges, particularly regarding color contrast. When used as a background color, it requires very light text (white or near-white) to ensure sufficient contrast for readability, meeting WCAG (Web Content Accessibility Guidelines) standards. Using darker text on this blue can result in a low contrast ratio, making it difficult for users with visual impairments to read the content. It's crucial to test the contrast ratio using online tools to ensure compliance. Also, avoid using this color as the sole indicator for interactive elements like links or buttons, as users with color blindness might miss them. Providing additional cues, such as underlines or icons, can improve accessibility for all users. Consider offering alternative color schemes to cater to different user preferences and accessibility needs.

Shades

Digital Color Formats

RGB
0 36 186
RGB0 36 186
Red
Green
Blue
HSL
228.39deg 100% 36.47%
228.3910036.47HSL
Hue
Saturation
Lightness
HWB
228.39deg 0% 27.06%
228.39027.06HWB
Hue
Whiteness
Blackness
hex#0024BA
rgb0 36 186
hsl228.39deg 100% 36.47%
cmyk100% 80.65% 0% 27.06%
hwb228.39deg 0% 27.06%
xyz-d650.09 0.05 0.47
oklch0.3846 0.2283 264.11
oklab0.3846 -0.02 -0.23
CMYK
100% 80.65% 0% 27.06%
10080.65027.06CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.05 0.47
0.090.050.47XYZ
X
Y
Z
OKLCH
0.3846 0.2283 264.11
0.38460.2283264.11LCH
Lightness
Chroma
Hue
OKLAB
0.3846 -0.02 -0.23
0.3846-0.02-0.23LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons