Ultramarine

#150F8C

General Information about #150F8C (Ultramarine)

The hexadecimal color code #150F8C represents a dark shade of blue, often referred to as Ultramarine. It is composed of 8.24% red, 5.88% green, and 54.9% blue. In the RGB color model, it has the values (21, 15, 140). In the CMYK color model, its values are (85, 89, 0, 45). Ultramarine is historically significant as a pigment derived from the mineral lapis lazuli, highly valued for its intense color and rarity. In modern usage, it’s used in various applications, from digital design to traditional art. Its deep blue hue evokes feelings of calmness, trust, and authority, making it suitable for designs aimed at establishing credibility or conveying a sense of sophistication. It's often associated with knowledge, power, integrity, and seriousness.

The color #150F8C, also known as Ultramarine, presents some accessibility challenges, especially when used as a foreground color on a white or light background. Its low lightness value (relatively dark hue) results in a low contrast ratio, potentially making it difficult for users with visual impairments to read text or distinguish interface elements. To ensure accessibility, it's crucial to use this color with a sufficiently light background or employ it for decorative elements where legibility is not paramount. Adhering to WCAG guidelines regarding contrast ratios is strongly advised. For instance, normal text should have a contrast ratio of at least 4.5:1, and large text should have a contrast ratio of at least 3:1. Using a color contrast checker can help to confirm that the color combination meets these standards. In cases where this color is essential for branding, consider offering a high-contrast theme or alternative color scheme to accommodate users with diverse visual needs. It’s also recommended to avoid using color as the sole means of conveying information.

Shades

Digital Color Formats

RGB
21 15 140
RGB21 15 140
Red
Green
Blue
HSL
242.88 80.65% 30.39%
242.8880.6530.39HSL
Hue
Saturation
Lightness
HWB
242.88 5.88% 45.1%
242.885.8845.1HWB
Hue
Whiteness
Blackness
hex#150F8C
rgb21 15 140
hsl242.88 80.65% 30.39%
cmyk85% 89.29% 0% 45.1%
hwb242.88 5.88% 45.1%
xyz5.21 2.39 25
CMYK
85% 89.29% 0% 45.1%
8589.29045.1CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.21 2.39 25
5.212.3925XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025