#1F3731 Color Information

Hex color code: #1F3731

#1F3731 is a dark cyan color. In RGB it is (31, 55, 49), and in HSL it is (165°, 28%, 17%). It is often used for branding and logos.

Try:

Color NameDark Slate Gray

HEX

#1F3731

RGB

31, 55, 49

HSL

165°, 28%, 17%

CMYK

44%, 0%, 11%, 78%

Shades

CSS Usage

color: #1F3731;
background-color: #1F3731;
border-color: #1F3731;
box-shadow: 0 0 10px #1F3731;
border: 2px solid #1F3731;

Tailwind Usage

bg-[#1F3731]
text-[#1F3731]
border-[#1F3731]
shadow-[0_0_10px_1F3731]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #1F3731, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #1F3731; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #1F3731; 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 #1F3731; background-color: #1F373115; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #1F373120; border-left: 4px solid #1F3731; }

Link / Accent

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

a { color: #1F3731; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #1F3731 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

31, 55, 49

Red: 31 / Green: 55 / Blue: 49

HSL

165°, 28%, 17%

Hue: 165° / Saturation: 28% / Lightness: 17%

CMYK

44%, 0%, 11%, 78%

Cyan: 44% / Magenta: 0% / Yellow: 11% / Key: 78%

What color is #1F3731?

#1F3731 is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

371F25

Color Palette

HEX to RGB

Convert #1F3731 to RGB:

rgb(31, 55, 49)HEX to RGB Converter →

HEX to HSL

Convert #1F3731 to HSL:

hsl(165, 28%, 17%)RGB to HSL Converter →

HEX to CMYK

Convert #1F3731 to CMYK:

cmyk(44%, 0%, 11%, 78%)Color Converter →

Color Meaning and Usage

#1F3731 is a dramatic cyan color with RGB values of 31, 55, 49 and HSL of 165°, 28%, 17%. This very dark shade evokes sophistication and elegance, making it suitable for a solid option for clean and minimal interfaces. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #1F3731 is #371F25, creating high-contrast pairings. For softer combinations, try analogous colors like #1F3725.

Use #1F3731 in CSS: color: #1F3731 or background-color: #1F3731. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #1F3731

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

Contrast Ratio: 1.65:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #1F3731?

#1F3731 is a dramatic cyan color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #1F3731?

#1F3731 in RGB is (31, 55, 49) - 31 red, 55 green, and 49 blue.

How to use #1F3731 in CSS?

Use #1F3731 directly in your CSS properties like color or background-color.

What colors go well with #1F3731?

#371F25 (complementary), #1F3725 (analogous), and #040706 (lighter shade) work well with #1F3731.