Ultramarine

#1B0B8D

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #1B0B8D, is a deep blue color known for its rich and vibrant hue. Historically, ultramarine was derived from the gemstone lapis lazuli, making it one of the most expensive and highly prized pigments. The name "ultramarine" literally means "beyond the sea," referring to its origin from the East. In color theory, ultramarine is considered a cool color, often associated with feelings of calmness, trust, and authority. It is frequently used in art, graphic design, and web development to evoke a sense of sophistication and professionalism. Its strong pigmentation makes it effective for creating depth and visual interest.

The color #1B0B8D, also known as Ultramarine, presents some accessibility challenges, particularly concerning contrast. When using this color for text or interactive elements, it's crucial to ensure sufficient contrast against the background. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Due to its dark nature, #1B0B8D will generally require very light backgrounds to meet these contrast requirements. Tools like contrast checkers can help verify compliance. Moreover, avoid relying solely on color to convey important information; use supplementary cues like text labels or icons to ensure usability for users with visual impairments. Providing high contrast themes or allowing users to customize colors can further enhance accessibility.

Shades

Digital Color Formats

RGB
27 11 141
RGB27 11 141
Red
Green
Blue
HSL
247.38deg 85.53% 29.8%
247.3885.5329.8HSL
Hue
Saturation
Lightness
HWB
247.38deg 4.31% 44.71%
247.384.3144.71HWB
Hue
Whiteness
Blackness
hex#1B0B8D
rgb27 11 141
hsl247.38deg 85.53% 29.8%
cmyk80.85% 92.2% 0% 44.71%
hwb247.38deg 4.31% 44.71%
xyz-d650.05 0.02 0.25
oklch0.31 0.1892 271.81
oklab0.31 0.01 -0.19
CMYK
80.85% 92.2% 0% 44.71%
80.8592.2044.71CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.31 0.1892 271.81
0.310.1892271.81LCH
Lightness
Chroma
Hue
OKLAB
0.31 0.01 -0.19
0.310.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons