Ultramarine

#0B1590

General Information about Ultramarine (#0B1590)

The hex color #0B1590, commonly known as Ultramarine, is a deep, rich blue hue situated within the blue color spectrum. It carries connotations of depth, stability, and sophistication. In the RGB color model, it consists of 4.31% red, 8.24% green, and 56.47% blue. The CMYK representation is 92.31% cyan, 85.42% magenta, 0% yellow, and 43.53% black. Ultramarine's name originates from the pigment derived from lapis lazuli, a semi-precious stone. Historically, it was highly valued and often associated with royalty and religious figures, making it a symbol of wealth and prestige. In modern usage, it's frequently used in design and branding to convey trust, reliability, and authority. Due to its high blue concentration, it often evokes feelings of calmness and serenity, but can also represent sadness or melancholy depending on the context. Understanding its nuances allows designers to harness its power effectively.

The hex color #0B1590, also known as Ultramarine, presents some accessibility challenges, particularly when used as a background or text color. Its dark hue results in low contrast against darker shades, potentially causing readability issues for users with visual impairments. According to WCAG guidelines, sufficient contrast is crucial for ensuring content is accessible. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #0B1590, it's essential to pair it with a light color such as white or a pale yellow to meet these standards. Furthermore, avoid using it for interactive elements without clear visual cues, as users might struggle to identify clickable areas. Testing with accessibility tools and user feedback is advisable to ensure optimal usability. It also needs to be noted that users with cognitive disabilities may also be affected, especially those with dyslexia or ADHD, so proper design is needed.

Shades

Digital Color Formats

RGB
11 21 144
RGB11 21 144
Red
Green
Blue
HSL
235.49 85.81% 30.39%
235.4985.8130.39HSL
Hue
Saturation
Lightness
HWB
235.49 4.31% 43.53%
235.494.3143.53HWB
Hue
Whiteness
Blackness
hex#0B1590
rgb11 21 144
hsl235.49 85.81% 30.39%
cmyk92.36% 85.42% 0% 43.53%
hwb235.49 4.31% 43.53%
xyz5.44 2.62 26.6
CMYK
92.36% 85.42% 0% 43.53%
92.3685.42043.53CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.44 2.62 26.6
5.442.6226.6XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025