Ultramarine

#1209AB

General Information about Ultramarine

The color #1209AB, commonly known as Ultramarine, is a deep, saturated blue hue. Its roots trace back to the pigment derived from the mineral lapis lazuli, prized for its intense color and rarity, making it historically more valuable than gold. Chemically, Ultramarine is a complex sodium aluminosilicate with sulfur, contributing to its unique spectral properties. In the RGB color model, #1209AB consists of 7.06% red, 3.53% green, and 67.06% blue. Its corresponding values in the CMYK model are 89.47% cyan, 94.74% magenta, 0% yellow, and 32.94% black. This intense color evokes feelings of tranquility and depth, and it is often associated with royalty, wisdom, and spirituality.

The color #1209AB, a deep ultramarine, presents significant accessibility challenges, particularly in text applications. Its dark nature necessitates very light foreground colors (white or shades of yellow) to achieve sufficient contrast as defined by WCAG guidelines. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. This color might not be suitable for interactive elements or important information if paired with mid-tone grays or other dark hues. When designing with #1209AB, careful attention must be given to color pairings to ensure readability and usability for individuals with visual impairments. Using online contrast checkers is highly advisable during the design process.

Shades

Digital Color Formats

RGB
18 9 171
RGB18 9 171
Red
Green
Blue
HSL
243.33 90% 35.29%
243.339035.29HSL
Hue
Saturation
Lightness
HWB
243.33 3.53% 32.94%
243.333.5332.94HWB
Hue
Whiteness
Blackness
hex#1209AB
rgb18 9 171
hsl243.33 90% 35.29%
cmyk89.47% 94.74% 0% 32.94%
hwb243.33 3.53% 32.94%
xyz7.7 3.26 38.75
CMYK
89.47% 94.74% 0% 32.94%
89.4794.74032.94CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.7 3.26 38.75
7.73.2638.75XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025