Ultramarine

#1D0D8A

General Information about Ultramarine

Ultramarine, represented by the hex code #1D0D8A, is a deep blue pigment originally derived from the precious stone lapis lazuli. The name "ultramarine" comes from the Latin "ultramarinus," meaning "beyond the sea," as the pigment was imported to Europe from Asia. Historically, it was one of the most expensive pigments, highly prized by Renaissance painters. Today, synthetic ultramarine is widely available, offering the same vibrant hue at a more accessible price. In color theory, ultramarine is considered a cool color, often associated with depth, stability, and tranquility. It can evoke feelings of sophistication and elegance. Its deep saturation makes it ideal for creating contrast and visual interest in various design applications. Ultramarine is located in the blue hue family.

The hex color #1D0D8A, a deep shade of ultramarine, presents significant accessibility challenges, particularly in web design. Its low lightness value (around 9%) results in a very dark appearance, which requires careful consideration of color contrast. According to WCAG guidelines, sufficient contrast between text and background is crucial for readability, especially for users with visual impairments. When using #1D0D8A as a background, it is imperative to pair it with very light text (white or near-white) to achieve a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Insufficient contrast can render text illegible for many users. Also avoid using it for interactive elements like links and buttons without clear visual cues beyond color, as colorblind users may not be able to distinguish them. Careful testing with accessibility tools is essential to ensure compliance and usability.

Shades

Digital Color Formats

RGB
29 13 138
RGB29 13 138
Red
Green
Blue
HSL
247.68deg 82.78% 29.61%
247.6882.7829.61HSL
Hue
Saturation
Lightness
HWB
247.68deg 5.1% 45.88%
247.685.145.88HWB
Hue
Whiteness
Blackness
hex#1D0D8A
rgb29 13 138
hsl247.68deg 82.78% 29.61%
cmyk78.99% 90.58% 0% 45.88%
hwb247.68deg 5.1% 45.88%
xyz-d650.05 0.02 0.24
oklch0.3088 0.1842 272.89
oklab0.3088 0.01 -0.18
CMYK
78.99% 90.58% 0% 45.88%
78.9990.58045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.24
0.050.020.24XYZ
X
Y
Z
OKLCH
0.3088 0.1842 272.89
0.30880.1842272.89LCH
Lightness
Chroma
Hue
OKLAB
0.3088 0.01 -0.18
0.30880.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons