Ultramarine

#0B0DA8

General Information about Ultramarine

Ultramarine, represented by the hex code #0B0DA8, is a deep blue color with a rich history and strong presence in art and design. The name 'Ultramarine' originates from the Latin 'ultramarinus,' meaning 'beyond the sea,' as the pigment was originally imported from Asia. Historically, it was derived from the semi-precious stone lapis lazuli, making it one of the most expensive pigments. The modern Ultramarine is a synthetic pigment chemically identical to the natural one, but it is more affordable. Ultramarine's use in art dates back to the 6th century, where it was commonly used in illuminated manuscripts and paintings. Its association with royalty and divinity further solidified its status as a color of prestige. Today, it finds applications in various fields, from digital design to fashion, retaining its visual impact and allure.

The hex color #0B0DA8, also known as Ultramarine, presents certain accessibility challenges, especially in web design. Its deep, saturated hue can lead to insufficient contrast when paired with lighter text or interface elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Ultramarine might not meet these ratios with standard light backgrounds, potentially causing readability issues for users with visual impairments. To improve accessibility, developers should carefully select contrasting colors for text and interactive elements. Lighter shades of yellow, white, or even carefully chosen pastels could work, but it's essential to test the contrast ratio using online tools to ensure compliance. Additionally, providing alternative color schemes or allowing users to customize their display settings can further enhance accessibility.

Shades

Digital Color Formats

RGB
11 13 168
RGB11 13 168
Red
Green
Blue
HSL
239.24deg 87.71% 35.1%
239.2487.7135.1HSL
Hue
Saturation
Lightness
HWB
239.24deg 4.31% 34.12%
239.244.3134.12HWB
Hue
Whiteness
Blackness
hex#0B0DA8
rgb11 13 168
hsl239.24deg 87.71% 35.1%
cmyk93.45% 92.26% 0% 34.12%
hwb239.24deg 4.31% 34.12%
xyz-d650.07 0.03 0.37
oklch0.3412 0.2219 265.92
oklab0.3412 -0.02 -0.22
CMYK
93.45% 92.26% 0% 34.12%
93.4592.26034.12CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.03 0.37
0.070.030.37XYZ
X
Y
Z
OKLCH
0.3412 0.2219 265.92
0.34120.2219265.92LCH
Lightness
Chroma
Hue
OKLAB
0.3412 -0.02 -0.22
0.3412-0.02-0.22LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons