Ultramarine

#100E8A

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #100E8A, is a deep and vivid shade of blue. Historically, ultramarine was derived from the precious mineral lapis lazuli, making it one of the most expensive pigments during the Middle Ages and Renaissance. The name "ultramarine" comes from the Latin "ultramarinus," meaning "beyond the sea," as the pigment was imported to Europe from mines in Asia. Because of its expense, ultramarine was often reserved for the most important figures in paintings, such as the Virgin Mary. Today, synthetic ultramarine is readily available, making it an accessible and widely used color in various applications, including art, design, and manufacturing. Its unique hue evokes feelings of depth, intelligence, and sophistication.

The color #100E8A, a deep shade of ultramarine, presents several accessibility considerations for web developers. Its dark nature means it generally requires light-colored text for sufficient contrast. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. This color may fail to meet these standards when paired with dark or moderately dark text. Tools like contrast checkers are essential to ensure readability. In scenarios where #100E8A is used as a background, lighter shades of text such as white (#FFFFFF) or very light grays are recommended. Developers should also avoid using this color for elements that rely solely on color to convey information, as users with color vision deficiencies may struggle to distinguish them. Providing alternative cues, such as text labels or icons, alongside color is a best practice to ensure inclusivity.

Shades

Digital Color Formats

RGB
16 14 138
RGB16 14 138
Red
Green
Blue
HSL
240.97deg 81.58% 29.8%
240.9781.5829.8HSL
Hue
Saturation
Lightness
HWB
240.97deg 5.49% 45.88%
240.975.4945.88HWB
Hue
Whiteness
Blackness
hex#100E8A
rgb16 14 138
hsl240.97deg 81.58% 29.8%
cmyk88.41% 89.86% 0% 45.88%
hwb240.97deg 5.49% 45.88%
xyz-d650.05 0.02 0.24
oklch0.3028 0.1872 268.08
oklab0.3028 -0.01 -0.19
CMYK
88.41% 89.86% 0% 45.88%
88.4189.86045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.24
0.050.020.24XYZ
X
Y
Z
OKLCH
0.3028 0.1872 268.08
0.30280.1872268.08LCH
Lightness
Chroma
Hue
OKLAB
0.3028 -0.01 -0.19
0.3028-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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