Smalt

#05319F

General Information about Smalt

Smalt, represented by the hexadecimal color code #05319F, is a deep, saturated blue hue historically derived from potassium glass colored with cobalt. It was commonly used as a pigment in paintings and ceramics, particularly during the 15th to 18th centuries. Chemically, the color originates from cobalt(II) oxide, which, when combined with silica and an alkali, produces a vibrant blue glass that is then ground into a fine powder. Smalt's color intensity depends on the concentration of cobalt and the particle size of the pigment. Over time, Smalt has been largely replaced by more stable and less expensive cobalt blue pigments such as ultramarine. In modern contexts, #05319F is used in digital design and branding to evoke feelings of trustworthiness, stability, and sophistication.

The color #05319F, also known as Smalt, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value of 6 results in poor contrast against light backgrounds, making text or interface elements difficult to discern. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Smalt fails to meet these criteria when paired with white or other light colors. To improve accessibility, consider using Smalt with very light yellows or oranges, or opt for darker shades in the blue or purple spectrum. Additionally, providing alternative cues such as icons or text labels can help users who struggle to differentiate colors. Careful consideration of color combinations is crucial when using Smalt to ensure that content is accessible to all users.

Shades

Digital Color Formats

RGB
5 49 159
RGB5 49 159
Red
Green
Blue
HSL
222.86deg 93.9% 32.16%
222.8693.932.16HSL
Hue
Saturation
Lightness
HWB
222.86deg 1.96% 37.65%
222.861.9637.65HWB
Hue
Whiteness
Blackness
hex#05319F
rgb5 49 159
hsl222.86deg 93.9% 32.16%
cmyk96.86% 69.18% 0% 37.65%
hwb222.86deg 1.96% 37.65%
xyz-d650.07 0.05 0.33
oklch0.3743 0.1825 263.4
oklab0.3743 -0.02 -0.18
CMYK
96.86% 69.18% 0% 37.65%
96.8669.18037.65CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.05 0.33
0.070.050.33XYZ
X
Y
Z
OKLCH
0.3743 0.1825 263.4
0.37430.1825263.4LCH
Lightness
Chroma
Hue
OKLAB
0.3743 -0.02 -0.18
0.3743-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons