Ultramarine

#180B8D

General Information about Ultramarine

Ultramarine, represented by the hex code #180B8D, is a deep and vivid shade of blue. Historically, ultramarine was derived from the rare and expensive mineral lapis lazuli, making it a prized pigment for artists. The name 'ultramarine' literally means 'beyond the sea,' referring to its origin from overseas. Today, synthetic ultramarine is widely available, offering the same beautiful hue at a fraction of the cost. In color psychology, blue is often associated with stability, trust, and wisdom. Ultramarine, with its intensity, can evoke feelings of creativity, inspiration, and depth. It is a versatile color that can be used in various applications, from digital design to fine art.

The color #180B8D, also known as Ultramarine, presents some accessibility challenges, particularly concerning color contrast. When used as a background color, it necessitates very light text to ensure readability. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text, as per WCAG guidelines. Given Ultramarine's dark nature, achieving sufficient contrast with text can be difficult. It's crucial to test color combinations using accessibility tools to avoid making content inaccessible to users with visual impairments. Furthermore, relying solely on color to convey information should be avoided; supplementary cues like text labels or icons are essential for inclusivity. Careful consideration should be given to the color's impact on users with color vision deficiencies.

Shades

Digital Color Formats

RGB
24 11 141
RGB24 11 141
Red
Green
Blue
HSL
246deg 85.53% 29.8%
24685.5329.8HSL
Hue
Saturation
Lightness
HWB
246deg 4.31% 44.71%
2464.3144.71HWB
Hue
Whiteness
Blackness
hex#180B8D
rgb24 11 141
hsl246deg 85.53% 29.8%
cmyk82.98% 92.2% 0% 44.71%
hwb246deg 4.31% 44.71%
xyz-d650.05 0.02 0.25
oklch0.3083 0.1901 270.64
oklab0.3083 0 -0.19
CMYK
82.98% 92.2% 0% 44.71%
82.9892.2044.71CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3083 0.1901 270.64
0.30830.1901270.64LCH
Lightness
Chroma
Hue
OKLAB
0.3083 0 -0.19
0.30830-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons