Ultramarine

#180296

About Ultramarine (#180296)

Ultramarine, represented by the hexadecimal color code #180296, is a deep, rich shade of blue. Historically, ultramarine was derived from the precious mineral lapis lazuli, making it a highly valued pigment, especially during the Renaissance. Today, synthetic ultramarine is widely available, retaining the characteristic vibrant hue without the exorbitant cost. In color theory, ultramarine is often associated with depth, stability, and wisdom. It evokes feelings of calmness and serenity, yet also possesses a sense of power and sophistication. Its position on the color wheel places it in the cool color family, and it can be used to create visually striking contrasts when paired with warmer colors. The RGB values are R:24, G:2, B:150.

The hex color #180296, a deep ultramarine, presents significant accessibility challenges. Its low luminance value (relative to white) means text rendered in this color on a white background, or vice versa, will likely fail WCAG contrast ratio guidelines. This can cause readability issues, especially for users with visual impairments. To improve accessibility, consider using a lighter text color like white (#FFFFFF) or a very light gray if using #180296 as a background. If used as a text color, a very light background is crucial. Tools like contrast checkers should be employed to ensure sufficient contrast ratios (at least 4.5:1 for normal text and 3:1 for large text). Another accessibility strategy is to avoid using this color to convey essential information solely through color. Provide redundant cues, such as text labels or icons, to ensure all users can understand the content, regardless of their color perception abilities. Careful consideration of contrast and alternative cues is crucial when incorporating this deep ultramarine into designs.

Shades

Digital Color Formats

RGB
24 2 150
RGB24 2 150
Red
Green
Blue
HSL
248.92deg 97.37% 29.8%
248.9297.3729.8HSL
Hue
Saturation
Lightness
HWB
248.92deg 0.78% 41.18%
248.920.7841.18HWB
Hue
Whiteness
Blackness
hex#180296
rgb24 2 150
hsl248.92deg 97.37% 29.8%
cmyk84% 98.67% 0% 41.18%
hwb248.92deg 0.78% 41.18%
xyz-d650.06 0.02 0.29
oklch0.3144 0.2042 270.07
oklab0.3144 0 -0.2
CMYK
84% 98.67% 0% 41.18%
8498.67041.18CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.02 0.29
0.060.020.29XYZ
X
Y
Z
OKLCH
0.3144 0.2042 270.07
0.31440.2042270.07LCH
Lightness
Chroma
Hue
OKLAB
0.3144 0 -0.2
0.31440-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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