Ultramarine

#0B118D

General Information about #0B118D (Ultramarine)

The hex color code #0B118D represents a deep, saturated shade of blue known as Ultramarine. In the RGB color model, it is composed of 4.31% red, 6.67% green, and 55.29% blue. This strong presence of blue gives the color its characteristic depth and intensity. Ultramarine has a long history, originally derived from the precious gemstone lapis lazuli. Its name means "beyond the sea," reflecting the fact that it was imported into Europe from Asia. In modern times, it's widely used in digital design, fine art, and various industries. The color conveys feelings of trust, stability, and authority, making it a popular choice for corporate branding, government agencies, and educational institutions. It is perceived as a cool and calming color, associated with intelligence and focus.

The color #0B118D, a deep shade of ultramarine, presents several accessibility considerations for web design. Its high darkness value means it requires careful pairing with lighter text 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. Using white or very light yellow text on a #0B118D background would likely meet these requirements. However, avoid using it for critical interactive elements like buttons or links unless the contrast is meticulously checked, as users with visual impairments may struggle. Furthermore, consider providing alternative color schemes for users who may have color vision deficiencies, where this particular shade could be problematic. It's advisable to use contrast checking tools to validate the color combinations and to test the design with users who have different visual abilities.

Shades

Digital Color Formats

RGB
11 17 141
RGB11 17 141
Red
Green
Blue
HSL
237.23deg 85.53% 29.8%
237.2385.5329.8HSL
Hue
Saturation
Lightness
HWB
237.23deg 4.31% 44.71%
237.234.3144.71HWB
Hue
Whiteness
Blackness
hex#0B118D
rgb11 17 141
hsl237.23deg 85.53% 29.8%
cmyk92.2% 87.94% 0% 44.71%
hwb237.23deg 4.31% 44.71%
xyz-d650.05 0.02 0.25
oklch0.3079 0.1899 266.6
oklab0.3079 -0.01 -0.19
CMYK
92.2% 87.94% 0% 44.71%
92.287.94044.71CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3079 0.1899 266.6
0.30790.1899266.6LCH
Lightness
Chroma
Hue
OKLAB
0.3079 -0.01 -0.19
0.3079-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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