#E51F1F Color Information

Hex color code: #E51F1F

The hex color #E51F1F is a striking red with RGB values of (229, 31, 31) and HSL of (0°, 79%, 51%). It is often used for branding and logos.

Try:
Color NameCrimson
HEX
#E51F1F
RGB
229, 31, 31
HSL
0°, 79%, 51%
CMYK
0%, 86%, 86%, 10%

Shades

CSS Usage
color: #E51F1F;
background-color: #E51F1F;
border-color: #E51F1F;
box-shadow: 0 0 10px #E51F1F;
border: 2px solid #E51F1F;
Tailwind Usage
bg-[#E51F1F]
text-[#E51F1F]
border-[#E51F1F]
shadow-[0_0_10px_E51F1F]

Generate Gradient

Gradient CSS
background: linear-gradient(90deg, #E51F1F, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #E51F1F; color: #FFFFFF; }

Badge

New Feature
.badge { background-color: #E51F1F; 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 #E51F1F; background-color: #E51F1F15; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #E51F1F20; border-left: 4px solid #E51F1F; }

Link / Accent

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

a { color: #E51F1F; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #E51F1F in the color wheel.

Current Complementary Triadic Analogous

RGB, HSL and CMYK Values

RGB

229, 31, 31

Red: 229 / Green: 31 / Blue: 31

HSL

0°, 79%, 51%

Hue: 0° / Saturation: 79% / Lightness: 51%

CMYK

0%, 86%, 86%, 10%

Cyan: 0% / Magenta: 86% / Yellow: 86% / Key: 10%

What color is #E51F1F?

#E51F1F is a red-orange hue associated with warmth and passion.

Color Shades

Complementary Colors

Color Palette

HEX to RGB

Convert #E51F1F to RGB:

rgb(229, 31, 31)HEX to RGB Converter →

HEX to HSL

Convert #E51F1F to HSL:

hsl(0, 79%, 51%)RGB to HSL Converter →

HEX to CMYK

Convert #E51F1F to CMYK:

cmyk(0%, 86%, 86%, 10%)Color Converter →

Color Meaning and Usage

#E51F1F is a vivid red color with RGB values of 229, 31, 31 and HSL of 0°, 79%, 51%. This red-orange hue evokes warmth and passion, making it suitable for popular in mobile app design. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #E51F1F is #1FE5E5, creating high-contrast pairings. For softer combinations, try analogous colors like #E51F82.

Use #E51F1F in CSS: color: #E51F1F or background-color: #E51F1F. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #E51F1F

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

Contrast Ratio: 4.55:1
WCAG AA: Pass
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #E51F1F?

#E51F1F is a vivid red color - a red-orange hue that evokes warmth and passion.

What is the RGB value of #E51F1F?

#E51F1F in RGB is (229, 31, 31) - 229 red, 31 green, and 31 blue.

How to use #E51F1F in CSS?

Use #E51F1F directly in your CSS properties like color or background-color.

What colors go well with #E51F1F?

#1FE5E5 (complementary), #E51F82 (analogous), and #A41313 (lighter shade) work well with #E51F1F.