Ultramarine

#110D8B

About Ultramarine

Ultramarine, represented by the hex code #110D8B, is a deep blue color with a slightly violet undertone. Historically, ultramarine was derived from the precious stone lapis lazuli, making it one of the most expensive and prized pigments. The name 'ultramarine' literally means 'beyond the sea,' referring to its origin as being imported into Europe from mines in Asia. In color theory, ultramarine is considered a cool color, often associated with tranquility, depth, and intelligence. It falls within the blue color family and can be used to create a sense of calm and stability. Its high saturation and dark value make it a striking color, suitable for adding a touch of elegance or sophistication to designs.

The color #110D8B, a deep shade of ultramarine, presents significant accessibility challenges, especially in web design. Its low luminance value of approximately 1.3% means that text rendered in this color requires a very light foreground color to ensure sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using #110D8B for text or interactive elements without careful consideration of contrast could exclude users with visual impairments. Designers should use contrast checking tools to verify compliance and may need to explore lighter tints or shades of ultramarine or alternative color combinations to meet accessibility standards and provide a usable experience for all users.

Shades

Digital Color Formats

RGB
17 13 139
RGB17 13 139
Red
Green
Blue
HSL
241.9deg 82.89% 29.8%
241.982.8929.8HSL
Hue
Saturation
Lightness
HWB
241.9deg 5.1% 45.49%
241.95.145.49HWB
Hue
Whiteness
Blackness
hex#110D8B
rgb17 13 139
hsl241.9deg 82.89% 29.8%
cmyk87.77% 90.65% 0% 45.49%
hwb241.9deg 5.1% 45.49%
xyz-d650.05 0.02 0.25
oklch0.3037 0.1887 268.35
oklab0.3037 -0.01 -0.19
CMYK
87.77% 90.65% 0% 45.49%
87.7790.65045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3037 0.1887 268.35
0.30370.1887268.35LCH
Lightness
Chroma
Hue
OKLAB
0.3037 -0.01 -0.19
0.3037-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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