Ultramarine

#18098F

General Information about Ultramarine (#18098F)

Ultramarine, represented by the hex code #18098F, is a deep blue color historically derived from the precious mineral lapis lazuli. The name translates to 'beyond the sea,' reflecting its origin from overseas sources. This color is known for its intense and vibrant hue, making it a popular choice in art and design. In the RGB color model, it consists of 9.41% red, 3.53% green, and 56.08% blue. Ultramarine is associated with qualities like wisdom, confidence, and stability. It is often used to create a sense of depth and serenity in visual compositions. Due to its dark nature, it should be used thoughtfully in digital design to ensure proper contrast and readability.

The color #18098F, a deep ultramarine, presents significant accessibility challenges. Its low luminance value of 2 means that text rendered in this color on a white background (or vice versa) will likely fail WCAG (Web Content Accessibility Guidelines) contrast requirements. Specifically, it doesn't meet the minimum contrast ratio of 4.5:1 for normal text or 3:1 for large text. To improve accessibility, consider using a much lighter color for text on a #18098F background, or a much darker color for the background if #18098F is used for text. Tools such as contrast checkers can help determine if a given color combination is accessible. Avoid using this color for critical information or interactive elements without careful consideration of contrast.

Shades

Digital Color Formats

RGB
24 9 143
RGB24 9 143
Red
Green
Blue
HSL
246.72deg 88.16% 29.8%
246.7288.1629.8HSL
Hue
Saturation
Lightness
HWB
246.72deg 3.53% 43.92%
246.723.5343.92HWB
Hue
Whiteness
Blackness
hex#18098F
rgb24 9 143
hsl246.72deg 88.16% 29.8%
cmyk83.22% 93.71% 0% 43.92%
hwb246.72deg 3.53% 43.92%
xyz-d650.05 0.02 0.26
oklch0.3096 0.1933 270.52
oklab0.3096 0 -0.19
CMYK
83.22% 93.71% 0% 43.92%
83.2293.71043.92CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.26
0.050.020.26XYZ
X
Y
Z
OKLCH
0.3096 0.1933 270.52
0.30960.1933270.52LCH
Lightness
Chroma
Hue
OKLAB
0.3096 0 -0.19
0.30960-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons