#172D40 Color Information

Hex color code: #172D40

The hex color #172D40 is a intense blue with RGB values of (23, 45, 64) and HSL of (208°, 47%, 17%). It is popular in mobile app design.

Try:

Color NameDark Slate Gray

HEX

#172D40

RGB

23, 45, 64

HSL

208°, 47%, 17%

CMYK

64%, 30%, 0%, 75%

Shades

CSS Usage

color: #172D40;
background-color: #172D40;
border-color: #172D40;
box-shadow: 0 0 10px #172D40;
border: 2px solid #172D40;

Tailwind Usage

bg-[#172D40]
text-[#172D40]
border-[#172D40]
shadow-[0_0_10px_172D40]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #172D40, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #172D40; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #172D40; color: #FFFFFF; }

Text Highlight

The quick brown fox jumps over the lazy dog. highlighted text example shows how the color looks as a text highlight.

Card

Card Title

This card uses your color as a border accent.

.card-accent { border: 2px solid #172D40; background-color: #172D4015; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #172D4020; border-left: 4px solid #172D40; }

Link / Accent

This is a paragraph with a link using your color. The color can be applied to interactive elements.

a { color: #172D40; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #172D40 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

23, 45, 64

Red: 23 / Green: 45 / Blue: 64

HSL

208°, 47%, 17%

Hue: 208° / Saturation: 47% / Lightness: 17%

CMYK

64%, 30%, 0%, 75%

Cyan: 64% / Magenta: 30% / Yellow: 0% / Key: 75%

What color is #172D40?

#172D40 is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

402A17

Color Palette

HEX to RGB

Convert #172D40 to RGB:

rgb(23, 45, 64)HEX to RGB Converter →

HEX to HSL

Convert #172D40 to HSL:

hsl(208, 47%, 17%)RGB to HSL Converter →

HEX to CMYK

Convert #172D40 to CMYK:

cmyk(64%, 30%, 0%, 75%)Color Converter →

Color Meaning and Usage

A dramatic blue tone, #172D40 has RGB (23, 45, 64) and HSL (208°, 47%, 17%). Known for evoking sophistication and elegance, this very dark shade is a common choice for dashboards and SaaS products. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #172D40 is #402A17, creating high-contrast pairings. For softer combinations, try analogous colors like #17403E.

Use #172D40 in CSS: color: #172D40 or background-color: #172D40. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #172D40

Sample text on this color - The quick brown fox jumps over the lazy dog.

Contrast Ratio: 1.49:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #172D40?

#172D40 is a dramatic blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #172D40?

#172D40 in RGB is (23, 45, 64) - 23 red, 45 green, and 64 blue.

How to use #172D40 in CSS?

Use #172D40 directly in your CSS properties like color or background-color.

What colors go well with #172D40?

#402A17 (complementary), #17403E (analogous), and #030507 (lighter shade) work well with #172D40.