Ultramarine

#131288

General Information About Ultramarine

Ultramarine, represented by the hex code #131288, is a deep blue color historically derived from the precious mineral lapis lazuli. The name "ultramarine" literally means "beyond the sea," reflecting its origin as a pigment imported into Europe from distant lands. Known for its rich, intense hue, ultramarine has been prized by artists for centuries due to its excellent lightfastness and vibrant appearance. In modern color theory, ultramarine is considered a cool color, often associated with feelings of tranquility, depth, and sophistication. Its deep saturation makes it suitable for adding depth and visual interest to designs. Today, synthetic versions of ultramarine are widely available, offering a more affordable and consistent alternative to the natural pigment.

The color #131288, a deep ultramarine, presents significant accessibility challenges, especially for users with visual impairments. Its low luminance value means that text rendered in this color requires very light foreground colors to achieve sufficient contrast. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text to meet WCAG AA standards. Using tools to check contrast ratios is crucial. Also, avoid using this color for critical interactive elements or information conveyance without redundant cues, such as icons or labels. When possible, provide options for users to customize colors to suit their individual needs. Proper color contrast ensures readability and usability for a wider audience, enhancing the overall user experience.

Shades

Digital Color Formats

RGB
19 18 136
RGB19 18 136
Red
Green
Blue
HSL
240.51deg 76.62% 30.2%
240.5176.6230.2HSL
Hue
Saturation
Lightness
HWB
240.51deg 7.06% 46.67%
240.517.0646.67HWB
Hue
Whiteness
Blackness
hex#131288
rgb19 18 136
hsl240.51deg 76.62% 30.2%
cmyk86.03% 86.76% 0% 46.67%
hwb240.51deg 7.06% 46.67%
xyz-d650.05 0.02 0.23
oklch0.3054 0.1815 269
oklab0.3054 0 -0.18
CMYK
86.03% 86.76% 0% 46.67%
86.0386.76046.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.23
0.050.020.23XYZ
X
Y
Z
OKLCH
0.3054 0.1815 269
0.30540.1815269LCH
Lightness
Chroma
Hue
OKLAB
0.3054 0 -0.18
0.30540-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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