Ultramarine

#011197

General Information about Ultramarine

The color #011197, commonly known as Ultramarine, is a deep and intense shade of blue. It belongs to the blue color family and has a relatively low lightness value, making it appear quite dark. In the RGB color model, it is composed of 0.4% red, 6.7% green, and 59.2% blue. The name "Ultramarine" originates from the Latin "ultramarinus," meaning "beyond the sea," as it was originally derived from the semi-precious stone lapis lazuli, which was imported from overseas. Historically, it was a highly prized pigment due to its rarity and vibrant color. Today, synthetic versions are widely available, making it more accessible for various applications. It is commonly associated with feelings of depth, intelligence, and sophistication.

The hex color #011197, also known as Ultramarine, presents significant accessibility challenges, especially in text-based contexts. Its very low lightness value (very dark blue) means that it requires extremely light text (white or near-white) to ensure sufficient contrast for readability. 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. Using #011197 with darker text colors will invariably fail these guidelines, making content difficult or impossible to read for users with visual impairments. When using this color, thorough contrast checking is essential, and alternative, lighter color options should be considered to improve accessibility for a wider audience. Also avoid using it for interactive elements, as the lack of contrast may cause those elements to be missed.

Shades

Digital Color Formats

RGB
1 17 151
RGB1 17 151
Red
Green
Blue
HSL
233.6deg 98.68% 29.8%
233.698.6829.8HSL
Hue
Saturation
Lightness
HWB
233.6deg 0.39% 40.78%
233.60.3940.78HWB
Hue
Whiteness
Blackness
hex#011197
rgb1 17 151
hsl233.6deg 98.68% 29.8%
cmyk99.34% 88.74% 0% 40.78%
hwb233.6deg 0.39% 40.78%
xyz-d650.06 0.03 0.29
oklch0.3186 0.2032 264.42
oklab0.3186 -0.02 -0.2
CMYK
99.34% 88.74% 0% 40.78%
99.3488.74040.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.03 0.29
0.060.030.29XYZ
X
Y
Z
OKLCH
0.3186 0.2032 264.42
0.31860.2032264.42LCH
Lightness
Chroma
Hue
OKLAB
0.3186 -0.02 -0.2
0.3186-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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