Ultramarine

#0A1591

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #0A1591, is a deep and rich shade of blue. It derives its name from the pigment originally made from lapis lazuli, a semi-precious stone. Historically, ultramarine pigment was highly valued and expensive, often reserved for important works of art, especially during the Renaissance. Today, synthetic ultramarine is widely available and more affordable. In the RGB color model, #0A1591 consists of 3.92% red, 8.24% green, and 56.86% blue. Its high blue component contributes to its distinctive and intense color. Ultramarine is often associated with qualities like depth, stability, and sophistication, making it a popular choice in various design applications.

The hex color #0A1591, also known as Ultramarine, presents accessibility challenges, particularly concerning color contrast. When used as a background color, it's crucial to pair it with a light text color to ensure readability. A contrast ratio of at least 4.5:1 is recommended for normal-sized text, as per WCAG guidelines. Using a color contrast checker is advisable to verify compliance. Furthermore, avoid relying solely on color to convey important information, as users with visual impairments may not be able to distinguish it. Consider providing alternative cues, such as text labels or icons, to enhance accessibility. When using this color for interactive elements like buttons, ensure sufficient contrast for focus states to aid keyboard navigation.

Shades

Digital Color Formats

RGB
10 21 145
RGB10 21 145
Red
Green
Blue
HSL
235.11 87.1% 30.39%
235.1187.130.39HSL
Hue
Saturation
Lightness
HWB
235.11 3.92% 43.14%
235.113.9243.14HWB
Hue
Whiteness
Blackness
hex#0A1591
rgb10 21 145
hsl235.11 87.1% 30.39%
cmyk93.1% 85.52% 0% 43.14%
hwb235.11 3.92% 43.14%
xyz5.5 2.65 27.01
CMYK
93.1% 85.52% 0% 43.14%
93.185.52043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.5 2.65 27.01
5.52.6527.01XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

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