Ultramarine

#17108B

General Information

Ultramarine, represented by the hexadecimal color code #17108B, is a deep blue pigment originally derived from the mineral lapis lazuli. Its name originates from the Latin 'ultramarinus,' meaning 'beyond the sea,' as it was imported to Europe from Asia. In the realm of color theory, Ultramarine is classified as a tertiary color, created by mixing primary and secondary hues. It exudes a sense of depth, sophistication, and royalty, making it a popular choice across various applications, from fine art to graphic design. Historically, due to the rarity and cost of lapis lazuli, ultramarine was highly prized and often reserved for the most important figures in paintings, such as the Virgin Mary. Today, synthetic ultramarine is widely available, making it more accessible for artists and designers alike, while still retaining its distinctive and captivating blue hue.

The color #17108B, Ultramarine, presents significant accessibility challenges, especially in web design. Its very dark hue results in low contrast against light backgrounds, making text or interactive elements difficult to read for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Ultramarine often fails to meet these ratios when paired with standard white or light-colored backgrounds. To improve accessibility, consider using lighter shades of blue or pairing it with contrasting colors like yellow or white in a strategic manner. Utilizing tools that assess color contrast can help designers make informed decisions to ensure content is perceivable and usable by a wider audience, including those with low vision or color blindness. Careful consideration should be given to font sizes and element sizes when using this color to mitigate potential readability issues.

Shades

Digital Color Formats

RGB
23 16 139
RGB23 16 139
Red
Green
Blue
HSL
243.41 79.35% 30.39%
243.4179.3530.39HSL
Hue
Saturation
Lightness
HWB
243.41 6.27% 45.49%
243.416.2745.49HWB
Hue
Whiteness
Blackness
hex#17108B
rgb23 16 139
hsl243.41 79.35% 30.39%
cmyk83.45% 88.49% 0% 45.49%
hwb243.41 6.27% 45.49%
xyz5.2 2.42 24.62
CMYK
83.45% 88.49% 0% 45.49%
83.4588.49045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.2 2.42 24.62
5.22.4224.62XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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