#15545B Color Information

Hex color code: #15545B

The hex color #15545B is a dark cyan with RGB values of (21, 84, 91) and HSL of (186°, 63%, 22%). It is frequently seen in web interfaces.

Try:

Color NameDark Slate Gray

HEX

#15545B

RGB

21, 84, 91

HSL

186°, 63%, 22%

CMYK

77%, 8%, 0%, 64%

Shades

CSS Usage

color: #15545B;
background-color: #15545B;
border-color: #15545B;
box-shadow: 0 0 10px #15545B;
border: 2px solid #15545B;

Tailwind Usage

bg-[#15545B]
text-[#15545B]
border-[#15545B]
shadow-[0_0_10px_15545B]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #15545B, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #15545B; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #15545B; 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 #15545B; background-color: #15545B15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #15545B20; border-left: 4px solid #15545B; }

Link / Accent

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

a { color: #15545B; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #15545B in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

21, 84, 91

Red: 21 / Green: 84 / Blue: 91

HSL

186°, 63%, 22%

Hue: 186° / Saturation: 63% / Lightness: 22%

CMYK

77%, 8%, 0%, 64%

Cyan: 77% / Magenta: 8% / Yellow: 0% / Key: 64%

What color is #15545B?

#15545B is a cyan-blue hue associated with trust and professionalism.

Color Shades

Complementary Colors

5B1C15

Color Palette

HEX to RGB

Convert #15545B to RGB:

rgb(21, 84, 91)HEX to RGB Converter →

HEX to HSL

Convert #15545B to HSL:

hsl(186, 63%, 22%)RGB to HSL Converter →

HEX to CMYK

Convert #15545B to CMYK:

cmyk(77%, 8%, 0%, 64%)Color Converter →

Color Meaning and Usage

A deep cyan tone, #15545B has RGB (21, 84, 91) and HSL (186°, 63%, 22%). Known for evoking trust and professionalism, this cyan-blue hue is popular for illustrations and friendly visual themes. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #15545B is #5B1C15, creating high-contrast pairings. For softer combinations, try analogous colors like #155B3F.

Use #15545B in CSS: color: #15545B or background-color: #15545B. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #15545B

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

Contrast Ratio: 2.45:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #15545B?

#15545B is a deep cyan color - a cyan-blue hue that evokes trust and professionalism.

What is the RGB value of #15545B?

#15545B in RGB is (21, 84, 91) - 21 red, 84 green, and 91 blue.

How to use #15545B in CSS?

Use #15545B directly in your CSS properties like color or background-color.

What colors go well with #15545B?

#5B1C15 (complementary), #155B3F (analogous), and #071B1D (lighter shade) work well with #15545B.