Ultramarine

#140791

About Ultramarine (#140791)

Ultramarine, represented by the hexadecimal color code #140791, is a deep blue pigment originally derived from the precious stone lapis lazuli. Its name literally means 'beyond the sea,' reflecting its historical origin from stones imported into Europe from Asia. Chemically, it's a complex sodium aluminosilicate with sulfur, resulting in its distinctive vibrant blue hue. Historically prized by Renaissance painters for its brilliance and permanence, synthetic Ultramarine was developed in the 19th century, making it more accessible and affordable. Today, it's widely used in various applications, from paints and plastics to cosmetics and textiles. The color evokes feelings of serenity, depth, and royalty.

The color #140791, also known as Ultramarine, presents specific accessibility challenges. Its dark hue results in low contrast against light backgrounds, potentially making text and interface elements difficult to read for users with visual impairments. According to WCAG guidelines, sufficient contrast is crucial for readability. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using Ultramarine, it's important to pair it with a very light color, such as white or a pale yellow, to ensure adequate contrast. Tools like contrast checkers can help verify compliance. Additionally, avoid using this color for crucial interactive elements, as users with color vision deficiencies might struggle to distinguish them. Consider providing alternative visual cues, such as icons or labels, to enhance usability.

Shades

Digital Color Formats

RGB
20 7 145
RGB20 7 145
Red
Green
Blue
HSL
245.65deg 90.79% 29.8%
245.6590.7929.8HSL
Hue
Saturation
Lightness
HWB
245.65deg 2.75% 43.14%
245.652.7543.14HWB
Hue
Whiteness
Blackness
hex#140791
rgb20 7 145
hsl245.65deg 90.79% 29.8%
cmyk86.21% 95.17% 0% 43.14%
hwb245.65deg 2.75% 43.14%
xyz-d650.05 0.02 0.27
oklch0.3089 0.1975 269.03
oklab0.3089 0 -0.2
CMYK
86.21% 95.17% 0% 43.14%
86.2195.17043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.27
0.050.020.27XYZ
X
Y
Z
OKLCH
0.3089 0.1975 269.03
0.30890.1975269.03LCH
Lightness
Chroma
Hue
OKLAB
0.3089 0 -0.2
0.30890-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons