#1F313D Color Information

Hex color code: #1F313D

#1F313D is a intense blue color. In RGB it is (31, 49, 61), and in HSL it is (204°, 33%, 18%). It is popular in mobile app design.

Try:

Color NameDark Slate Gray

HEX

#1F313D

RGB

31, 49, 61

HSL

204°, 33%, 18%

CMYK

49%, 20%, 0%, 76%

Shades

CSS Usage

color: #1F313D;
background-color: #1F313D;
border-color: #1F313D;
box-shadow: 0 0 10px #1F313D;
border: 2px solid #1F313D;

Tailwind Usage

bg-[#1F313D]
text-[#1F313D]
border-[#1F313D]
shadow-[0_0_10px_1F313D]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #1F313D, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #1F313D; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #1F313D; 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 #1F313D; background-color: #1F313D15; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #1F313D20; border-left: 4px solid #1F313D; }

Link / Accent

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

a { color: #1F313D; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #1F313D in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

31, 49, 61

Red: 31 / Green: 49 / Blue: 61

HSL

204°, 33%, 18%

Hue: 204° / Saturation: 33% / Lightness: 18%

CMYK

49%, 20%, 0%, 76%

Cyan: 49% / Magenta: 20% / Yellow: 0% / Key: 76%

What color is #1F313D?

#1F313D is a very dark shade associated with sophistication and elegance.

Color Shades

Complementary Colors

3D2B1F

Color Palette

HEX to RGB

Convert #1F313D to RGB:

rgb(31, 49, 61)HEX to RGB Converter →

HEX to HSL

Convert #1F313D to HSL:

hsl(204, 33%, 18%)RGB to HSL Converter →

HEX to CMYK

Convert #1F313D to CMYK:

cmyk(49%, 20%, 0%, 76%)Color Converter →

Color Meaning and Usage

A rich blue tone, #1F313D has RGB (31, 49, 61) and HSL (204°, 33%, 18%). Known for evoking sophistication and elegance, this very dark shade is frequently chosen for fintech and productivity apps. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #1F313D is #3D2B1F, creating high-contrast pairings. For softer combinations, try analogous colors like #1F3D3A.

Use #1F313D in CSS: color: #1F313D or background-color: #1F313D. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #1F313D

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

Contrast Ratio: 1.56:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #1F313D?

#1F313D is a rich blue color - a very dark shade that evokes sophistication and elegance.

What is the RGB value of #1F313D?

#1F313D in RGB is (31, 49, 61) - 31 red, 49 green, and 61 blue.

How to use #1F313D in CSS?

Use #1F313D directly in your CSS properties like color or background-color.

What colors go well with #1F313D?

#3D2B1F (complementary), #1F3D3A (analogous), and #05080A (lighter shade) work well with #1F313D.