Ultramarine

#1F0B8D

General Information about Ultramarine

The hex color #1F0B8D, also known as Ultramarine, is a deep shade of blue with a strong presence. In the RGB color model, it is composed of 12.2% red, 4.3% green, and 55.3% blue. This composition places it firmly in the blue color spectrum, imparting a sense of calm, depth, and stability. Ultramarine's name originates from the pigment derived from lapis lazuli, a semi-precious stone, historically making it a prized and expensive color. It is a color often associated with royalty, wisdom, and spirituality due to its historical significance and rich tone. In modern color psychology, deep blues like #1F0B8D evoke feelings of trust, loyalty, and confidence, making it a popular choice for branding and design where reliability is key.

The color #1F0B8D, a deep ultramarine, presents significant accessibility challenges, particularly in text-based applications. Its low luminance value means that it requires very light text (white or near-white) to achieve sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is necessary for normal-sized text and 3:1 for larger text to ensure compliance. Using #1F0B8D as a background color without careful consideration of text color and size will likely result in content that is difficult or impossible for users with visual impairments to read. Tools like contrast checkers should be used to verify adequate contrast. Avoid pairing it with mid-tone colors. Also, consider providing alternative color schemes or high-contrast modes for users who need them.

Shades

Digital Color Formats

RGB
31 11 141
RGB31 11 141
Red
Green
Blue
HSL
249.23deg 85.53% 29.8%
249.2385.5329.8HSL
Hue
Saturation
Lightness
HWB
249.23deg 4.31% 44.71%
249.234.3144.71HWB
Hue
Whiteness
Blackness
hex#1F0B8D
rgb31 11 141
hsl249.23deg 85.53% 29.8%
cmyk78.01% 92.2% 0% 44.71%
hwb249.23deg 4.31% 44.71%
xyz-d650.05 0.02 0.25
oklch0.3125 0.1881 273.5
oklab0.3125 0.01 -0.19
CMYK
78.01% 92.2% 0% 44.71%
78.0192.2044.71CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3125 0.1881 273.5
0.31250.1881273.5LCH
Lightness
Chroma
Hue
OKLAB
0.3125 0.01 -0.19
0.31250.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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