#A3231F Color Information

Hex color code: #A3231F

#A3231F is a warm red color. In RGB it is (163, 35, 31), and in HSL it is (2°, 68%, 38%). It is commonly used in modern UI design.

Try:
Color NameBrown
HEX
#A3231F
RGB
163, 35, 31
HSL
2°, 68%, 38%
CMYK
0%, 79%, 81%, 36%

Shades

CSS Usage
color: #A3231F;
background-color: #A3231F;
border-color: #A3231F;
box-shadow: 0 0 10px #A3231F;
border: 2px solid #A3231F;
Tailwind Usage
bg-[#A3231F]
text-[#A3231F]
border-[#A3231F]
shadow-[0_0_10px_A3231F]

Generate Gradient

Gradient CSS
background: linear-gradient(90deg, #A3231F, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #A3231F; color: #FFFFFF; }

Badge

New Feature
.badge { background-color: #A3231F; 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 #A3231F; background-color: #A3231F15; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #A3231F20; border-left: 4px solid #A3231F; }

Link / Accent

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

a { color: #A3231F; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #A3231F in the color wheel.

Current Complementary Triadic Analogous

RGB, HSL and CMYK Values

RGB

163, 35, 31

Red: 163 / Green: 35 / Blue: 31

HSL

2°, 68%, 38%

Hue: 2° / Saturation: 68% / Lightness: 38%

CMYK

0%, 79%, 81%, 36%

Cyan: 0% / Magenta: 79% / Yellow: 81% / Key: 36%

What color is #A3231F?

#A3231F is a red-orange hue associated with warmth and passion.

Color Shades

Complementary Colors

Color Palette

HEX to RGB

Convert #A3231F to RGB:

rgb(163, 35, 31)HEX to RGB Converter →

HEX to HSL

Convert #A3231F to HSL:

hsl(2, 68%, 38%)RGB to HSL Converter →

HEX to CMYK

Convert #A3231F to CMYK:

cmyk(0%, 79%, 81%, 36%)Color Converter →

Color Meaning and Usage

A vibrant red tone, #A3231F has RGB (163, 35, 31) and HSL (2°, 68%, 38%). Known for evoking warmth and passion, this red-orange hue is frequently chosen for fintech and productivity apps. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #A3231F is #1F9EA3, creating high-contrast pairings. For softer combinations, try analogous colors like #A31F5D.

Use #A3231F in CSS: color: #A3231F or background-color: #A3231F. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #A3231F

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

Contrast Ratio: 2.82:1
WCAG AA: Fail
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #A3231F?

#A3231F is a vibrant red color - a red-orange hue that evokes warmth and passion.

What is the RGB value of #A3231F?

#A3231F in RGB is (163, 35, 31) - 163 red, 35 green, and 31 blue.

How to use #A3231F in CSS?

Use #A3231F directly in your CSS properties like color or background-color.

What colors go well with #A3231F?

#1F9EA3 (complementary), #A31F5D (analogous), and #631513 (lighter shade) work well with #A3231F.