Ultramarine

#0010A0

General Information about Ultramarine

The color #0010A0, commonly known as Ultramarine, is a deep and vibrant shade of blue. It is located in the blue region of the color spectrum and is characterized by its rich and intense hue. The hexadecimal color code #0010A0 indicates a combination of 0% red, 6.27% green, and 62.75% blue. This particular shade of blue has a long and storied history, dating back to ancient times when it was derived from the semi-precious stone lapis lazuli. Ultramarine was highly valued for its brilliance and was often used in paintings, particularly in religious art, to depict the robes of the Virgin Mary. The name 'ultramarine' literally means 'beyond the sea,' referring to the fact that the pigment had to be imported into Europe from distant lands. Today, ultramarine is synthetically produced, making it more accessible, but it retains its reputation as a sophisticated and captivating color.

The color #0010A0, a deep shade of ultramarine, presents some accessibility challenges, especially in web design. Its low luminance value means that text rendered in this color against a white or light background requires careful consideration of contrast ratios. According to WCAG guidelines, sufficient contrast is crucial for users with visual impairments to perceive content effectively. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using #0010A0 for text, a very light color, such as white (#FFFFFF) or a light yellow (#FFFFE0), should be used as the background to meet these guidelines. Additionally, avoid using this color for crucial interactive elements without proper visual cues, as users might struggle to identify them. Using supplementary cues like borders or icons can drastically improve the usability of content using #0010A0.

Shades

Digital Color Formats

RGB
0 16 160
RGB0 16 160
Red
Green
Blue
HSL
234deg 100% 31.37%
23410031.37HSL
Hue
Saturation
Lightness
HWB
234deg 0% 37.25%
234037.25HWB
Hue
Whiteness
Blackness
hex#0010A0
rgb0 16 160
hsl234deg 100% 31.37%
cmyk100% 90% 0% 37.25%
hwb234deg 0% 37.25%
xyz-d650.07 0.03 0.33
oklch0.3298 0.2138 264.22
oklab0.3298 -0.02 -0.21
CMYK
100% 90% 0% 37.25%
10090037.25CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.03 0.33
0.070.030.33XYZ
X
Y
Z
OKLCH
0.3298 0.2138 264.22
0.32980.2138264.22LCH
Lightness
Chroma
Hue
OKLAB
0.3298 -0.02 -0.21
0.3298-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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