← Shades of blue

≈ Deep Blue

#001E73 is closest to Deep Blue in our library. Deep Blue (#001E73) is a dark, moderately saturated blue with a cool feel. It has a hue angle of 224° and a lightness of 29%. Its moderate saturation keeps it lively without shouting.

#001E73≈ Deep Blue
Conversion

What Deep Blue looks like, feels like and where it works.

Description

Deep Blue (#001E73) is a dark, moderately saturated blue with a cool feel. It has a hue angle of 224° and a lightness of 29%. Its moderate saturation keeps it lively without shouting.

Psychology

Blue is the most widely liked color and the default for trust. It lowers the sense of urgency, so it suits products that ask for confidence: money, health and software. As a dark shade, Deep Blue feels weighty and serious.

Meaning

Blue stands for calm, stability, loyalty and the sky and sea. It is also the color of sadness in English (feeling blue) and, in some cultures, of protection.

Why use this color

Deep Blue is an easy supporting color. It carries white text well, so it works as a button, header or badge background. Pair it with its tints and shades for a complete scale.

Applications
  • Finance, banking and insurance
  • Technology and software
  • Healthcare and corporate identity
  • Links and primary actions in interfaces
History

Egyptian blue, from about 2500 BC, is often called the first synthetic pigment. Ultramarine from lapis lazuli cost as much as gold; Prussian blue (about 1706) made deep blue affordable.

Accessibility

White text on Deep Blue has a contrast ratio of 14.65:1 (AAA); black text has 1.43:1 (fails). WCAG AA needs 4.5:1 for body text and 3:1 for large text and interface parts. Do not rely on color alone to carry meaning: pair it with text, an icon or a pattern.

ShadesMixed with black: darker and richer.
TintsMixed with white: lighter and softer.
TonesMixed with gray: quieter and less saturated.
HuesThe same lightness and strength, turned around the wheel.
TemperaturesPushed cooler on the left, warmer on the right.
50#F3F7FF100#E2ECFE200#CADBFC300#A1C1FE400#75A0F5500#5582DF600#426BC0700#31549E800#233F7A900#001E73950#091839
Analogous
Complementary
Split complementary
Triadic
Tetradic
Square

Want to explore these on a wheel? Open the color wheel.

#001E73
Typical visionAs most people see it
#002E76
ProtanopiaReduced sensitivity to red
#002371
DeuteranopiaReduced sensitivity to green
#003646
TritanopiaReduced sensitivity to blue
#282828
AchromatopsiaNo color, only light and dark

These are approximations to help you check that meaning never depends on color alone. Real vision varies from person to person.

White textQuote n. 31: there is no such thing as a bad color.
14.65:1
AAAAA
Normal textAAAAA
Large textAAAAA
Black textQuote n. 31: there is no such thing as a bad color.
1.43:1
AAAAA
Normal textFailFail
Large textFailFail
Open the contrast checker
#001E73 Color — closest to Deep Blue (HEX, RGB, Shades) · Tintly