Ultramarine

#1107AD

General Information

Ultramarine, represented by the hex code #1107AD, is a deep, rich blue color with a slight violet undertone. Historically, Ultramarine was derived from the precious stone lapis lazuli, making it one of the most expensive and highly prized pigments during the medieval and Renaissance periods. Its name literally means 'beyond the sea,' referring to its origin from stones imported into Europe from Asia. Synthetic Ultramarine was developed in the 19th century, making the color more accessible and affordable. In the RGB color model, Ultramarine is composed of 6.7% red, 2.7% green, and 67.8% blue. In the CMYK color model, it consists of 90% cyan, 96% magenta, 0% yellow, and 32% black. The color evokes feelings of tranquility, depth, and sophistication, and is often associated with royalty, wisdom, and spirituality.

The color #1107AD, also known as Ultramarine, presents several accessibility considerations, particularly in web design. Due to its deep, saturated hue, it offers relatively low contrast against lighter backgrounds, which can pose challenges for users with visual impairments. According to WCAG guidelines, sufficient contrast ratios are crucial for text readability and interface usability. When using Ultramarine for text, pairing it with a very light color such as white or a pale yellow is recommended to meet accessibility standards. For decorative purposes, such as background accents, the contrast requirements are less stringent, but careful consideration is still necessary to ensure comfortable viewing for all users. It's also important to avoid using Ultramarine as the sole indicator for interactive elements, as colorblind users may not be able to distinguish it effectively. Supplementing color cues with text labels or icons can significantly improve accessibility. Consider the use of online contrast checkers to assess the suitability of Ultramarine in combination with other colors to ensure optimal readability and usability for a diverse audience.

Shades

Digital Color Formats

RGB
17 7 173
RGB17 7 173
Red
Green
Blue
HSL
243.61 92.22% 35.29%
243.6192.2235.29HSL
Hue
Saturation
Lightness
HWB
243.61 2.75% 32.16%
243.612.7532.16HWB
Hue
Whiteness
Blackness
hex#1107AD
rgb17 7 173
hsl243.61 92.22% 35.29%
cmyk90.17% 95.95% 0% 32.16%
hwb243.61 2.75% 32.16%
xyz7.85 3.29 39.76
CMYK
90.17% 95.95% 0% 32.16%
90.1795.95032.16CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.85 3.29 39.76
7.853.2939.76XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025