#303640 Color Information

Hex color code: #303640

A dark blue shade, #303640 appears as (48, 54, 64) in RGB and (218°, 14%, 22%) in HSL. It is often used for branding and logos.

Try:

Color NameDark Slate Gray

HEX

#303640

RGB

48, 54, 64

HSL

218°, 14%, 22%

CMYK

25%, 16%, 0%, 75%

Shades

CSS Usage

color: #303640;
background-color: #303640;
border-color: #303640;
box-shadow: 0 0 10px #303640;
border: 2px solid #303640;

Tailwind Usage

bg-[#303640]
text-[#303640]
border-[#303640]
shadow-[0_0_10px_303640]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #303640, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #303640; color: #FFFFFF; }

Badge

New Feature

.badge { background-color: #303640; 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 #303640; background-color: #30364015; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #30364020; border-left: 4px solid #303640; }

Link / Accent

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

a { color: #303640; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #303640 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

48, 54, 64

Red: 48 / Green: 54 / Blue: 64

HSL

218°, 14%, 22%

Hue: 218° / Saturation: 14% / Lightness: 22%

CMYK

25%, 16%, 0%, 75%

Cyan: 25% / Magenta: 16% / Yellow: 0% / Key: 75%

What color is #303640?

#303640 is a desaturated neutral associated with balance and subtlety.

Color Shades

Complementary Colors

403A30

Color Palette

HEX to RGB

Convert #303640 to RGB:

rgb(48, 54, 64)HEX to RGB Converter →

HEX to HSL

Convert #303640 to HSL:

hsl(218, 14%, 22%)RGB to HSL Converter →

HEX to CMYK

Convert #303640 to CMYK:

cmyk(25%, 16%, 0%, 75%)Color Converter →

Color Meaning and Usage

A rich blue tone, #303640 has RGB (48, 54, 64) and HSL (218°, 14%, 22%). Known for evoking balance and subtlety, this desaturated neutral is frequently chosen for fintech and productivity apps. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #303640 is #403A30, creating high-contrast pairings. For softer combinations, try analogous colors like #303E40.

Use #303640 in CSS: color: #303640 or background-color: #303640. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #303640

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

Contrast Ratio: 1.73:1

WCAG AA: Fail

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #303640?

#303640 is a rich blue color - a desaturated neutral that evokes balance and subtlety.

What is the RGB value of #303640?

#303640 in RGB is (48, 54, 64) - 48 red, 54 green, and 64 blue.

How to use #303640 in CSS?

Use #303640 directly in your CSS properties like color or background-color.

What colors go well with #303640?

#403A30 (complementary), #303E40 (analogous), and #0F1114 (lighter shade) work well with #303640.