Ultramarine

#17159F

General Information about Ultramarine (#17159F)

Ultramarine, represented by the hex code #17159F, is a deep, rich blue color named after the pigment originally made from lapis lazuli. This pigment was historically highly prized, making ultramarine one of the most expensive pigments used by Renaissance painters. In modern color theory, ultramarine is classified as a cool color, often associated with calmness, depth, and stability. Its strong blue hue evokes feelings of trust, loyalty, and intelligence. In color psychology, ultramarine is often used in branding and design to convey reliability and professionalism. It is a popular choice for corporate logos and websites aiming to establish credibility. The color's intensity and depth make it versatile, lending itself well to both digital and print applications. It is important to note that the perceived hue and saturation of Ultramarine can vary depending on the display and surrounding colors.

The hex color #17159f, also known as Ultramarine, presents several accessibility considerations for web developers. Its high blue value and low red/green values result in low luminance, implying that using it as a background color requires careful attention to contrast ratios. According to WCAG guidelines, sufficient contrast between foreground text and background color is crucial for readability, especially for users with visual impairments. For normal text (14pt/18px and larger), a contrast ratio of at least 4.5:1 is recommended, while for large text (18pt/24px and larger), a ratio of 3:1 is acceptable. Given the darkness of Ultramarine, light-colored text (white or very light grays) should be chosen to ensure compliance. Additionally, avoid using this color to convey important information without redundant cues. Employing icons or text labels alongside the color enhances accessibility for users with color blindness. Careful consideration of these factors will ensure that the web content is accessible to a wider audience.

Shades

Digital Color Formats

RGB
23 21 159
RGB23 21 159
Red
Green
Blue
HSL
240.87 76.67% 35.29%
240.8776.6735.29HSL
Hue
Saturation
Lightness
HWB
240.87 8.24% 37.65%
240.878.2437.65HWB
Hue
Whiteness
Blackness
hex#17159F
rgb23 21 159
hsl240.87 76.67% 35.29%
cmyk85.53% 86.79% 0% 37.65%
hwb240.87 8.24% 37.65%
xyz6.88 3.22 33.06
CMYK
85.53% 86.79% 0% 37.65%
85.5386.79037.65CMYK
Cyan
Magenta
Yellow
Key
XYZ
6.88 3.22 33.06
6.883.2233.06XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025