Ultramarine

#1F0791

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #1F0791, is a deep blue pigment that has been highly valued throughout history. Its name originates from the Latin 'ultramarinus,' meaning 'beyond the sea,' as it was originally imported from mines in Afghanistan. Historically, ultramarine was made by grinding lapis lazuli into a powder. Due to the rarity and cost of lapis lazuli, ultramarine pigment was exceedingly expensive, often more so than gold, and was reserved for the most important commissions, such as the robes of the Virgin Mary in religious paintings. Today, synthetic ultramarine is widely available, offering a more affordable alternative while retaining the color's characteristic deep blue hue. This color family is often associated with royalty, wisdom, and spirituality, making it a popular choice in art, design, and branding.

The color #1F0791, a deep ultramarine, presents significant accessibility challenges, especially in web design. Its low lightness value (YIQ is only 0.06) means that text rendered in this color on a white background, or vice versa, will likely fail WCAG contrast ratio guidelines. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. To improve accessibility, consider using a lighter shade of blue or pairing it with a very light color such as white, light gray, or yellow to ensure sufficient contrast. Using color alone to convey important information should also be avoided; provide alternative cues, such as text labels or icons, to accommodate users with color vision deficiencies. Always test color combinations with accessibility tools to verify compliance with accessibility standards and ensure usability for all users.

Shades

Digital Color Formats

RGB
31 7 145
RGB31 7 145
Red
Green
Blue
HSL
250.43deg 90.79% 29.8%
250.4390.7929.8HSL
Hue
Saturation
Lightness
HWB
250.43deg 2.75% 43.14%
250.432.7543.14HWB
Hue
Whiteness
Blackness
hex#1F0791
rgb31 7 145
hsl250.43deg 90.79% 29.8%
cmyk78.62% 95.17% 0% 43.14%
hwb250.43deg 2.75% 43.14%
xyz-d650.06 0.02 0.27
oklch0.3151 0.1945 273.17
oklab0.3151 0.01 -0.19
CMYK
78.62% 95.17% 0% 43.14%
78.6295.17043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.02 0.27
0.060.020.27XYZ
X
Y
Z
OKLCH
0.3151 0.1945 273.17
0.31510.1945273.17LCH
Lightness
Chroma
Hue
OKLAB
0.3151 0.01 -0.19
0.31510.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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