Ultramarine

#040793

General Information about Ultramarine

The hexadecimal color #040793, also known as Ultramarine, is a deep shade of blue residing within the blue color family. It's characterized by its low saturation and high darkness, conveying a sense of depth, mystery, and sophistication. In the RGB color model, it is composed of 1.57% red, 2.75% green, and 57.65% blue. This means that the blue component is significantly dominant, contributing to the color's distinct blue hue. Ultramarine's historical significance stems from its origin as a pigment derived from the semi-precious stone lapis lazuli. This made it a highly prized color in art, reserved for depicting important figures and religious scenes. Today, it is synthetically produced, making it more accessible for various applications.

The color #040793, a deep ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its extremely low luminance value (very dark) results in poor contrast against typical light backgrounds, making text and interface elements difficult to read. According to WCAG guidelines, this color fails all contrast ratio tests against white. To ensure accessibility, it's crucial to pair this color with very light shades, such as white (#FFFFFF) or light yellows, to achieve a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Avoid using this color for essential interactive elements or informational text without careful consideration of contrast. Providing alternative high-contrast themes can also improve the user experience for those with visual sensitivities.

Shades

Digital Color Formats

RGB
4 7 147
RGB4 7 147
Red
Green
Blue
HSL
238.74deg 94.7% 29.61%
238.7494.729.61HSL
Hue
Saturation
Lightness
HWB
238.74deg 1.57% 42.35%
238.741.5742.35HWB
Hue
Whiteness
Blackness
hex#040793
rgb4 7 147
hsl238.74deg 94.7% 29.61%
cmyk97.28% 95.24% 0% 42.35%
hwb238.74deg 1.57% 42.35%
xyz-d650.05 0.02 0.28
oklch0.3061 0.2034 265.03
oklab0.3061 -0.02 -0.2
CMYK
97.28% 95.24% 0% 42.35%
97.2895.24042.35CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.28
0.050.020.28XYZ
X
Y
Z
OKLCH
0.3061 0.2034 265.03
0.30610.2034265.03LCH
Lightness
Chroma
Hue
OKLAB
0.3061 -0.02 -0.2
0.3061-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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