#FF0400 Color Information

Hex color code: #FF0400

The hex color #FF0400 is a eye-catching red with RGB values of (255, 4, 0) and HSL of (1°, 100%, 50%). It is popular in mobile app design.

Try:

Color NameRed

HEX

#FF0400

RGB

255, 4, 0

HSL

1°, 100%, 50%

CMYK

0%, 98%, 100%, 0%

Shades

CSS Usage

color: #FF0400;
background-color: #FF0400;
border-color: #FF0400;
box-shadow: 0 0 10px #FF0400;
border: 2px solid #FF0400;

Tailwind Usage

bg-[#FF0400]
text-[#FF0400]
border-[#FF0400]
shadow-[0_0_10px_FF0400]

Generate Gradient

→

Gradient CSS

background: linear-gradient(90deg, #FF0400, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #FF0400; color: #000000; }

Badge

New Feature

.badge { background-color: #FF0400; color: #000000; }

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 #FF0400; background-color: #FF040015; }

Alert / Toast

This is an alert using your color as accent.

.alert { background-color: #FF040020; border-left: 4px solid #FF0400; }

Link / Accent

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

a { color: #FF0400; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #FF0400 in the color wheel.

● Current● Complementary● Triadic● Analogous

RGB, HSL and CMYK Values

RGB

255, 4, 0

Red: 255 / Green: 4 / Blue: 0

HSL

1°, 100%, 50%

Hue: 1° / Saturation: 100% / Lightness: 50%

CMYK

0%, 98%, 100%, 0%

Cyan: 0% / Magenta: 98% / Yellow: 100% / Key: 0%

What color is #FF0400?

#FF0400 is a highly saturated hue associated with energy and excitement.

Color Shades

Complementary Colors

00FBFF

Color Palette

HEX to RGB

Convert #FF0400 to RGB:

rgb(255, 4, 0)HEX to RGB Converter →

HEX to HSL

Convert #FF0400 to HSL:

hsl(1, 100%, 50%)RGB to HSL Converter →

HEX to CMYK

Convert #FF0400 to CMYK:

cmyk(0%, 98%, 100%, 0%)Color Converter →

Color Meaning and Usage

#FF0400 is a dynamic red color with RGB values of 255, 4, 0 and HSL of 1°, 100%, 50%. This highly saturated hue evokes energy and excitement, making it suitable for frequently chosen for fintech and productivity apps. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #FF0400 is #00FBFF, creating high-contrast pairings. For softer combinations, try analogous colors like #FF007B.

Use #FF0400 in CSS: color: #FF0400 or background-color: #FF0400. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #FF0400

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

Contrast Ratio: 5.27:1

WCAG AA: Pass

WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #FF0400?

#FF0400 is a dynamic red color - a highly saturated hue that evokes energy and excitement.

What is the RGB value of #FF0400?

#FF0400 in RGB is (255, 4, 0) - 255 red, 4 green, and 0 blue.

How to use #FF0400 in CSS?

Use #FF0400 directly in your CSS properties like color or background-color.

What colors go well with #FF0400?

#00FBFF (complementary), #FF007B (analogous), and #B30300 (lighter shade) work well with #FF0400.