Ultramarine

#130D8A

General Information about Ultramarine (#130D8A)

The color #130D8A, also known as Ultramarine, is a deep, intense shade of blue. It belongs to the blue color family, sitting closer to the indigo end of the spectrum. Historically, ultramarine pigment was derived from the precious stone lapis lazuli, making it one of the most expensive and highly prized pigments during the medieval and Renaissance periods. The name 'ultramarine' literally means 'beyond the sea,' referring to its origin from stones imported into Europe from Asia. Today, synthetic ultramarine is widely available, offering the same vibrant color at a fraction of the cost. In color psychology, deep blues like ultramarine are associated with trustworthiness, stability, and knowledge. It can evoke feelings of calmness and serenity, but also seriousness and formality.

The color #130D8A, a deep ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value (approximately 3.6) necessitates careful consideration of color contrast. When used as text, it demands a very light background to meet WCAG (Web Content Accessibility Guidelines) AA standards for normal text (4.5:1 contrast ratio) and AAA standards for enhanced contrast (7:1). Even larger text may struggle to achieve sufficient contrast on moderately dark backgrounds. Designers should avoid pairing this color with other dark hues. Instead, opt for backgrounds close to white or very pale shades of yellow or cyan. When used for graphical elements, ensure a contrast ratio of at least 3:1 against adjacent colors to maintain usability. Providing alternative text descriptions for images using this color is crucial for screen reader users. Careful implementation of ARIA attributes can also improve the accessibility of interactive elements using #130D8A.

Shades

Digital Color Formats

RGB
19 13 138
RGB19 13 138
Red
Green
Blue
HSL
242.88deg 82.78% 29.61%
242.8882.7829.61HSL
Hue
Saturation
Lightness
HWB
242.88deg 5.1% 45.88%
242.885.145.88HWB
Hue
Whiteness
Blackness
hex#130D8A
rgb19 13 138
hsl242.88deg 82.78% 29.61%
cmyk86.23% 90.58% 0% 45.88%
hwb242.88deg 5.1% 45.88%
xyz-d650.05 0.02 0.24
oklch0.3033 0.187 269.05
oklab0.3033 0 -0.19
CMYK
86.23% 90.58% 0% 45.88%
86.2390.58045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.24
0.050.020.24XYZ
X
Y
Z
OKLCH
0.3033 0.187 269.05
0.30330.187269.05LCH
Lightness
Chroma
Hue
OKLAB
0.3033 0 -0.19
0.30330-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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