Ultramarine

#000398

About Ultramarine

Ultramarine, represented by the hexadecimal color code #000398, is a deep, rich blue color. It closely resembles the pigment derived from the mineral lapis lazuli, which was historically highly valued and used to create paints in Renaissance art. This particular shade of blue is characterized by its strong saturation and dark undertones, often associated with qualities such as depth, stability, and authority. In color psychology, dark blues are frequently used to evoke feelings of trust, security, and intelligence. While appearing almost black, it possesses a distinctly blue hue, distinguishing it from pure black or other darker colors. Its usage in various applications aims to communicate sophistication, professionalism, and timelessness.

The color #000398, a deep ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance (very close to black) results in poor contrast against most backgrounds, including white. This makes it difficult for individuals with low vision to discern text or graphical elements using this color. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text against its background. #000398 fails to meet these standards with common background colors, necessitating careful consideration of color pairings. To improve accessibility, it is crucial to use this color with very light backgrounds, such as yellows or light greens, and to ensure that text size is sufficiently large. Additionally, providing alternative cues, such as icons or labels, can assist users who may struggle to differentiate elements solely based on color. When used on interactive elements, the color should also be distinguishable in different states, such as hover or focus, to aid navigation. Proper use of ARIA attributes can also help provide semantic information to assistive technologies, further enhancing accessibility.

Shades

Digital Color Formats

RGB
0 3 152
RGB0 3 152
Red
Green
Blue
HSL
238.82deg 100% 29.8%
238.8210029.8HSL
Hue
Saturation
Lightness
HWB
238.82deg 0% 40.39%
238.82040.39HWB
Hue
Whiteness
Blackness
hex#000398
rgb0 3 152
hsl238.82deg 100% 29.8%
cmyk100% 98.03% 0% 40.39%
hwb238.82deg 0% 40.39%
xyz-d650.06 0.02 0.3
oklch0.3093 0.2115 264.12
oklab0.3093 -0.02 -0.21
CMYK
100% 98.03% 0% 40.39%
10098.03040.39CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.02 0.3
0.060.020.3XYZ
X
Y
Z
OKLCH
0.3093 0.2115 264.12
0.30930.2115264.12LCH
Lightness
Chroma
Hue
OKLAB
0.3093 -0.02 -0.21
0.3093-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons