International Klein Blue

#0035C1

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue first mixed by the French artist Yves Klein. IKB's visual impact comes from its heavy reliance on ultramarine, as well as Klein's artistic vision. Klein patented this color to maintain its unique quality and association with his work. Chemically, it is a synthetic ultramarine pigment. In the art world, it's celebrated for its depth and intensity, offering a captivating visual experience. Beyond art, IKB finds applications in design, fashion, and branding, adding a touch of sophistication and modernity. Its distinctive hue makes it instantly recognizable and adds impact to any design.

The hex color #0035c1, also known as International Klein Blue, presents some accessibility challenges, particularly when used as a background or text color. Its dark hue necessitates light foreground colors to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When pairing #0035c1 with white text, the contrast is generally acceptable, but careful evaluation is crucial, especially for users with visual impairments. Using color contrast tools to verify compliance is essential. Moreover, avoid relying solely on color to convey information, as colorblind users may not perceive the intended message. Supplement color cues with text labels or icons to ensure inclusivity and accessibility for all users.

Shades

Digital Color Formats

RGB
0 53 193
RGB0 53 193
Red
Green
Blue
HSL
223.52deg 100% 37.84%
223.5210037.84HSL
Hue
Saturation
Lightness
HWB
223.52deg 0% 24.31%
223.52024.31HWB
Hue
Whiteness
Blackness
hex#0035C1
rgb0 53 193
hsl223.52deg 100% 37.84%
cmyk100% 72.54% 0% 24.31%
hwb223.52deg 0% 24.31%
xyz-d650.11 0.06 0.51
oklch0.4169 0.2205 263.45
oklab0.4169 -0.03 -0.22
CMYK
100% 72.54% 0% 24.31%
10072.54024.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.06 0.51
0.110.060.51XYZ
X
Y
Z
OKLCH
0.4169 0.2205 263.45
0.41690.2205263.45LCH
Lightness
Chroma
Hue
OKLAB
0.4169 -0.03 -0.22
0.4169-0.03-0.22LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons