#213B4F Color Information

Hex color code: #213B4F

#213B4F is a dark blue color. In RGB it is (33, 59, 79), and in HSL it is (206°, 41%, 22%). It is frequently seen in web interfaces.

Try:

Color NameDark Slate Gray

HEX

#213B4F

RGB

33, 59, 79

HSL

206°, 41%, 22%

CMYK

58%, 25%, 0%, 69%

Shades

CSS Usage

color: #213B4F;
background-color: #213B4F;
border-color: #213B4F;
box-shadow: 0 0 10px #213B4F;
border: 2px solid #213B4F;

Tailwind Usage

bg-[#213B4F]
text-[#213B4F]
border-[#213B4F]
shadow-[0_0_10px_213B4F]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #213B4F, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #213B4F; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #213B4F; 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 #213B4F; background-color: #213B4F15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #213B4F20; border-left: 4px solid #213B4F; }

Link / Accent

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

a { color: #213B4F; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #213B4F in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

33, 59, 79

Red: 33 / Green: 59 / Blue: 79

HSL

206°, 41%, 22%

Hue: 206° / Saturation: 41% / Lightness: 22%

CMYK

58%, 25%, 0%, 69%

Cyan: 58% / Magenta: 25% / Yellow: 0% / Key: 69%

What color is #213B4F?

#213B4F is a cyan-blue hue associated with trust and professionalism.

Color Shades

Complementary Colors

4F3521

Color Palette

HEX to RGB

Convert #213B4F to RGB:

rgb(33, 59, 79)HEX to RGB Converter →

HEX to HSL

Convert #213B4F to HSL:

hsl(206, 41%, 22%)RGB to HSL Converter →

HEX to CMYK

Convert #213B4F to CMYK:

cmyk(58%, 25%, 0%, 69%)Color Converter →

Color Meaning and Usage

A deep blue tone, #213B4F has RGB (33, 59, 79) and HSL (206°, 41%, 22%). Known for evoking trust and professionalism, this cyan-blue hue is often used for buttons, highlights, and accents. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #213B4F is #4F3521, creating high-contrast pairings. For softer combinations, try analogous colors like #214F4C.

Use #213B4F in CSS: color: #213B4F or background-color: #213B4F. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #213B4F

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

Contrast Ratio: 1.80:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #213B4F?

#213B4F is a deep blue color - a cyan-blue hue that evokes trust and professionalism.

What is the RGB value of #213B4F?

#213B4F in RGB is (33, 59, 79) - 33 red, 59 green, and 79 blue.

How to use #213B4F in CSS?

Use #213B4F directly in your CSS properties like color or background-color.

What colors go well with #213B4F?

#4F3521 (complementary), #214F4C (analogous), and #0B1319 (lighter shade) work well with #213B4F.