International Klein Blue

#0638AE

About International Klein Blue

International Klein Blue, often abbreviated as IKB, is a deep blue hue first mixed by the French artist Yves Klein. This specific shade of blue was developed as part of Klein's search to find a color that best represented his concept of pure idea. IKB's visual impact is primarily due to its heavy reliance on ultramarine pigment, ensuring an intense color depth. The color has been patented by Klein, showcasing its unique and iconic status. In the realm of color theory, IKB evokes feelings of creativity, freedom, and transcendence. The hue is particularly valued for its matte finish, allowing for maximum pigment saturation and intensity.

The hex color #0638ae, also known as International Klein Blue, presents some accessibility challenges, particularly in text applications. Its dark hue means that it requires a very light foreground color to ensure sufficient contrast for readability. According to WCAG (Web Content Accessibility Guidelines), the contrast ratio between the text and background should be at least 4.5:1 for normal text and 3:1 for large text. When using #0638ae as a background, it's essential to test the contrast ratio with different text colors using online tools to comply with accessibility standards. Considering alternatives or using it sparingly can also help in creating a more accessible design. Avoid using it for critical interface elements without careful consideration of contrast.

Shades

Digital Color Formats

RGB
6 56 174
RGB6 56 174
Red
Green
Blue
HSL
222.14deg 93.33% 35.29%
222.1493.3335.29HSL
Hue
Saturation
Lightness
HWB
222.14deg 2.35% 31.76%
222.142.3531.76HWB
Hue
Whiteness
Blackness
hex#0638AE
rgb6 56 174
hsl222.14deg 93.33% 35.29%
cmyk96.55% 67.82% 0% 31.76%
hwb222.14deg 2.35% 31.76%
xyz-d650.09 0.06 0.41
oklch0.4028 0.1933 263.2
oklab0.4028 -0.02 -0.19
CMYK
96.55% 67.82% 0% 31.76%
96.5567.82031.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.41
0.090.060.41XYZ
X
Y
Z
OKLCH
0.4028 0.1933 263.2
0.40280.1933263.2LCH
Lightness
Chroma
Hue
OKLAB
0.4028 -0.02 -0.19
0.4028-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons