Ultramarine

#1A0D8B

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #1A0D8B, is a deep blue color that is reminiscent of the pigment derived from the gemstone lapis lazuli. This color falls within the blue-violet range of the color spectrum and is characterized by its rich, intense hue. Historically, ultramarine was highly prized and expensive due to the laborious process of extracting it from lapis lazuli. It was frequently used in Renaissance paintings to depict robes of religious figures, signifying their importance. Today, synthetic ultramarine is widely available, making it an accessible color for various applications. Its hex code #1A0D8B translates to Red: 10, Green: 13, Blue: 139 in the RGB color model. In the CMYK color model, it is composed of Cyan: 93%, Magenta: 91%, Yellow: 0%, and Black: 45%.

The color #1A0D8B, a deep ultramarine, presents some accessibility challenges, especially when used as a foreground color on a white or light background. Its low luminance value (approximately 4%) results in a poor contrast ratio against white, falling far short of WCAG guidelines for text legibility. To improve accessibility, consider using #1A0D8B sparingly for text and pairing it with much lighter colors like yellows, oranges, or light blues. For larger text sizes, the contrast requirements are slightly less stringent, but it's still crucial to ensure adequate contrast. Avoid using #1A0D8B for crucial information or interactive elements without careful consideration of its contrast against the background. Providing alternative high-contrast themes for your website can also greatly improve accessibility for users with visual impairments. When used for non-text elements, ensure that the color is not the only means of conveying information.

Shades

Digital Color Formats

RGB
26 13 139
RGB26 13 139
Red
Green
Blue
HSL
246.19deg 82.89% 29.8%
246.1982.8929.8HSL
Hue
Saturation
Lightness
HWB
246.19deg 5.1% 45.49%
246.195.145.49HWB
Hue
Whiteness
Blackness
hex#1A0D8B
rgb26 13 139
hsl246.19deg 82.89% 29.8%
cmyk81.29% 90.65% 0% 45.49%
hwb246.19deg 5.1% 45.49%
xyz-d650.05 0.02 0.25
oklch0.3083 0.1862 271.53
oklab0.3083 0 -0.19
CMYK
81.29% 90.65% 0% 45.49%
81.2990.65045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3083 0.1862 271.53
0.30830.1862271.53LCH
Lightness
Chroma
Hue
OKLAB
0.3083 0 -0.19
0.30830-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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