Ultramarine

#0D148A

General Information about Ultramarine (#0D148A)

Ultramarine, represented by the hexadecimal color code #0D148A, is a deep, vibrant blue hue. It derives its name from the pigment originally made from lapis lazuli, a semi-precious stone. Historically, Ultramarine was highly prized by artists due to its brilliance and permanence. Today, synthetic versions offer more accessible and affordable options, but the name persists, evoking a sense of luxury and historical significance. In the RGB color model, #0D148A consists of 5.1% red, 7.8% green, and 54.1% blue. Its properties make it suitable for conveying feelings of trust, stability, and depth. Its use in design can evoke feelings of calm, trustworthiness, and authority, and the color is often associated with intellectual pursuits and the arts. However, its darkness requires careful consideration of contrast ratios when used in text or UI elements.

The color #0D148A, also known as Ultramarine, presents some accessibility challenges, primarily due to its low lightness value. When used as a background color, it requires very light text to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Given its dark nature, #0D148A will likely fail these contrast tests with moderately dark text. To improve accessibility, consider using lighter shades of blue or pairing it with very light colors like white or very pale yellow for text and interactive elements. Avoid using it for small text or intricate graphics where legibility is crucial. Providing sufficient contrast will make your content accessible to users with visual impairments.

Shades

Digital Color Formats

RGB
13 20 138
RGB13 20 138
Red
Green
Blue
HSL
236.64deg 82.78% 29.61%
236.6482.7829.61HSL
Hue
Saturation
Lightness
HWB
236.64deg 5.1% 45.88%
236.645.145.88HWB
Hue
Whiteness
Blackness
hex#0D148A
rgb13 20 138
hsl236.64deg 82.78% 29.61%
cmyk90.58% 85.51% 0% 45.88%
hwb236.64deg 5.1% 45.88%
xyz-d650.05 0.02 0.24
oklch0.3078 0.1838 267.08
oklab0.3078 -0.01 -0.18
CMYK
90.58% 85.51% 0% 45.88%
90.5885.51045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.24
0.050.020.24XYZ
X
Y
Z
OKLCH
0.3078 0.1838 267.08
0.30780.1838267.08LCH
Lightness
Chroma
Hue
OKLAB
0.3078 -0.01 -0.18
0.3078-0.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons