Ultramarine

#150890

About Ultramarine (#150890)

The hexadecimal color code #150890 represents a deep shade of blue, often referred to as ultramarine. It is composed of 8.24% red, 3.14% green, and 56.47% blue. In the RGB color model, this translates to R:21, G:8, B:144. The color's high blue component gives it a strong, cool tone. Ultramarine is historically significant as a pigment derived from the mineral lapis lazuli, making it one of the most expensive and highly prized colors during the Renaissance. Its rich, saturated hue has been widely used in art, fashion, and design to convey a sense of depth, luxury, and sophistication. Today, synthetic ultramarine pigments offer a more accessible and affordable alternative, while retaining the color's distinctive qualities.

The color #150890, a deep ultramarine, presents significant accessibility challenges, particularly in web design. Its low luminance value of approximately 2% means that text rendered in this color against a white background, or vice versa, would likely fail WCAG (Web Content Accessibility Guidelines) contrast ratio requirements. These guidelines suggest a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text (14pt bold or 18pt regular) to ensure readability for users with visual impairments. To improve accessibility, consider pairing #150890 with much lighter shades of yellow or white to achieve sufficient contrast. Alternatively, using #150890 sparingly for decorative elements, rather than essential text or interactive components, can help to mitigate accessibility issues. Thoroughly testing color combinations with accessibility tools is crucial to ensure an inclusive user experience.

Shades

Digital Color Formats

RGB
21 8 144
RGB21 8 144
Red
Green
Blue
HSL
245.74deg 89.47% 29.8%
245.7489.4729.8HSL
Hue
Saturation
Lightness
HWB
245.74deg 3.14% 43.53%
245.743.1443.53HWB
Hue
Whiteness
Blackness
hex#150890
rgb21 8 144
hsl245.74deg 89.47% 29.8%
cmyk85.42% 94.44% 0% 43.53%
hwb245.74deg 3.14% 43.53%
xyz-d650.05 0.02 0.27
oklch0.3087 0.1957 269.41
oklab0.3087 0 -0.2
CMYK
85.42% 94.44% 0% 43.53%
85.4294.44043.53CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.27
0.050.020.27XYZ
X
Y
Z
OKLCH
0.3087 0.1957 269.41
0.30870.1957269.41LCH
Lightness
Chroma
Hue
OKLAB
0.3087 0 -0.2
0.30870-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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