Ultramarine

#1811A3

About Ultramarine (#1811A3)

The hex color #1811A3, also known as Ultramarine, is a deep and intense shade of blue. It resides in the blue color family, closely resembling other hues like sapphire and indigo. In the RGB color model, it is composed of 9.41% red, 6.67% green, and 63.92% blue. The color’s dominance by blue gives it its characteristic depth and richness. In the CMYK color model, it is represented by 85.2% cyan, 89.5% magenta, 0% yellow, and 36.1% black. This makes it a saturated color, suitable for various applications ranging from web design to fashion. Ultramarine often evokes feelings of sophistication, depth, and mystery, making it a favored choice in designs that aim to convey these qualities.

The color #1811A3, a deep Ultramarine, presents several accessibility considerations for web design. Its low luminance requires careful attention to contrast ratios, especially when used for text or interactive elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text (14pt bold or 18pt regular). Ensure sufficient contrast against background colors to accommodate users with visual impairments. Providing alternative visual cues, such as icons or text decorations, can further enhance usability. Avoid using this color as the sole indicator of important information. Consider using color blindness simulators to preview how the color appears to users with different types of color vision deficiencies. Thoroughly testing your designs with diverse user groups is essential to ensure optimal accessibility.

Shades

Digital Color Formats

RGB
24 17 163
RGB24 17 163
Red
Green
Blue
HSL
242.88 81.11% 35.29%
242.8881.1135.29HSL
Hue
Saturation
Lightness
HWB
242.88 6.67% 36.08%
242.886.6736.08HWB
Hue
Whiteness
Blackness
hex#1811A3
rgb24 17 163
hsl242.88 81.11% 35.29%
cmyk85.28% 89.57% 0% 36.08%
hwb242.88 6.67% 36.08%
xyz7.19 3.24 34.9
CMYK
85.28% 89.57% 0% 36.08%
85.2889.57036.08CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.19 3.24 34.9
7.193.2434.9XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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