Ultramarine

#1B0F89

General Information about Ultramarine

The hex color #1B0F89, also known as Ultramarine, is a deep and rich shade of blue in the RGB color model. It is created by combining relatively low amounts of red (11.0%), green (5.9%), and a high amount of blue (53.7%). In the world of color, Ultramarine is often associated with depth, stability, and trust, making it a popular choice for branding and design projects that aim to convey these qualities. This particular shade of blue has a sense of formality and elegance, making it suitable for luxury brands, educational institutions, and professional services. Ultramarine is a color that is associated with wisdom, knowledge and intelligence.

The hex color #1B0F89, a deep shade of Ultramarine, presents significant accessibility challenges, especially in web design. Its low lightness value of approximately 6% means that text or other visual elements using this color as a background require extremely light foreground colors to ensure sufficient contrast. According to WCAG (Web Content Accessibility Guidelines), a contrast ratio of at least 4.5:1 is needed for normal text and 3:1 for large text to meet AA standards. Using #1B0F89 with darker text would fail these contrast tests, making the content difficult or impossible to read for users with visual impairments. To improve accessibility, consider using lighter shades of blue or pairing it with contrasting colors like white or yellow to achieve the necessary contrast ratios. Tools like contrast checkers can help in verifying compliance with accessibility standards.

Shades

Digital Color Formats

RGB
27 15 137
RGB27 15 137
Red
Green
Blue
HSL
245.9deg 80.26% 29.8%
245.980.2629.8HSL
Hue
Saturation
Lightness
HWB
245.9deg 5.88% 46.27%
245.95.8846.27HWB
Hue
Whiteness
Blackness
hex#1B0F89
rgb27 15 137
hsl245.9deg 80.26% 29.8%
cmyk80.29% 89.05% 0% 46.27%
hwb245.9deg 5.88% 46.27%
xyz-d650.05 0.02 0.24
oklch0.308 0.1824 272.05
oklab0.308 0.01 -0.18
CMYK
80.29% 89.05% 0% 46.27%
80.2989.05046.27CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.24
0.050.020.24XYZ
X
Y
Z
OKLCH
0.308 0.1824 272.05
0.3080.1824272.05LCH
Lightness
Chroma
Hue
OKLAB
0.308 0.01 -0.18
0.3080.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons