Ultramarine

#100197

General Information about Ultramarine

Ultramarine, represented by the hex code #100197, is a deep blue color historically derived from the rare and expensive mineral lapis lazuli. The name 'ultramarine' literally means 'beyond the sea' because the pigment was imported to Europe from mines in Afghanistan. Chemically, it is a complex sodium aluminosilicate with sulfur. In the RGB color model, #100197 is composed of 6.27% red, 0.39% green, and 58.82% blue. In the CMYK color model, it consists of 90.43% cyan, 99.59% magenta, 0% yellow, and 41.18% black. Its hue angle is 247.1 degrees, its saturation is 99.18%, and its lightness is 29.61%. Ultramarine is often associated with royalty, spirituality, and the sea. It is used in various applications, including fine art, cosmetics, and plastics. Modern synthetic ultramarine is more affordable and widely used than the original natural pigment.

The color #100197, also known as Ultramarine, presents accessibility challenges due to its dark hue. When used as a background color, it requires light-colored text to ensure sufficient contrast for readability. A contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text (14pt bold or 18pt). Tools like WebAIM's Contrast Checker can help verify compliance with WCAG guidelines. For users with low vision, ensure that interactive elements have clear visual cues. Avoid using this color for critical information without proper contrast. Consider providing alternative color schemes for users with specific visual impairments, enhancing the overall user experience. Using this color for decorative purposes should be carefully reviewed to avoid unintended accessibility issues. Thoughtful consideration of color choices ensures inclusivity and usability for all users.

Shades

Digital Color Formats

RGB
16 1 151
RGB16 1 151
Red
Green
Blue
HSL
246deg 98.68% 29.8%
24698.6829.8HSL
Hue
Saturation
Lightness
HWB
246deg 0.39% 40.78%
2460.3940.78HWB
Hue
Whiteness
Blackness
hex#100197
rgb16 1 151
hsl246deg 98.68% 29.8%
cmyk89.4% 99.34% 0% 40.78%
hwb246deg 0.39% 40.78%
xyz-d650.06 0.02 0.29
oklch0.3115 0.2079 267.56
oklab0.3115 -0.01 -0.21
CMYK
89.4% 99.34% 0% 40.78%
89.499.34040.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.02 0.29
0.060.020.29XYZ
X
Y
Z
OKLCH
0.3115 0.2079 267.56
0.31150.2079267.56LCH
Lightness
Chroma
Hue
OKLAB
0.3115 -0.01 -0.21
0.3115-0.01-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons