Ultramarine

#1507AC

General Information about Ultramarine

The color #1507AC, commonly known as Ultramarine, is a deep blue pigment originally derived from the precious mineral lapis lazuli. Its name literally means "beyond the sea," reflecting its origin as a pigment imported into Europe from overseas. Historically, ultramarine was highly prized and extremely expensive, often reserved for the most important figures in paintings, such as the Virgin Mary. Nowadays, synthetic ultramarine is widely available, making it a more accessible color. In the RGB color model, #1507AC is composed of 8.24% red, 2.75% green, and 67.45% blue. Its CMYK values are 0.88, 0.96, 0.00, 0.33. This striking blue hue evokes feelings of tranquility, authority, and sophistication, making it a popular choice in various design applications.

The color #1507AC, also known as Ultramarine, presents several accessibility challenges, especially in web design. Due to its dark nature, it requires careful consideration of contrast ratios. When used as a background color, it is essential to pair it with very light text (white or near-white) to ensure readability, meeting WCAG (Web Content Accessibility Guidelines) standards for color contrast. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Insufficient contrast can make the content difficult or impossible to read for users with visual impairments. Additionally, avoid using this color as the sole indicator for interactive elements like links or buttons, as colorblind users might miss them. Providing alternative cues, such as underlines or icons, can significantly improve accessibility. When incorporating this color into user interface elements, test its visibility with various color blindness simulators to ensure a positive user experience for everyone.

Shades

Digital Color Formats

RGB
21 7 172
RGB21 7 172
Red
Green
Blue
HSL
245.09deg 92.18% 35.1%
245.0992.1835.1HSL
Hue
Saturation
Lightness
HWB
245.09deg 2.75% 32.55%
245.092.7532.55HWB
Hue
Whiteness
Blackness
hex#1507AC
rgb21 7 172
hsl245.09deg 92.18% 35.1%
cmyk87.79% 95.93% 0% 32.55%
hwb245.09deg 2.75% 32.55%
xyz-d650.08 0.03 0.39
oklch0.3464 0.2263 267.82
oklab0.3464 -0.01 -0.23
CMYK
87.79% 95.93% 0% 32.55%
87.7995.93032.55CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.03 0.39
0.080.030.39XYZ
X
Y
Z
OKLCH
0.3464 0.2263 267.82
0.34640.2263267.82LCH
Lightness
Chroma
Hue
OKLAB
0.3464 -0.01 -0.23
0.3464-0.01-0.23LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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