#dd2425

Alizarin Crimson

Closest match (96% match)

Color formats

RGB

rgb(221, 36, 37)

Red, Green, Blue components

HSL

hsl(360, 73%, 50%)

Hue, Saturation, Lightness

CMYK

cmyk(0, 84, 83, 13)

Print color encoding

Luminance

0.168

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#dd2425

#24dddc

Analogous (Adjacent)

#dd2482

#dd2425

#dd7f24

Triadic

#dd2425

#25dd24

#2425dd

Split complementary

#dd2425

#24dd80

#2482dd

Complete conversion table

HEX

#DD2425

RGB

rgb(221,36,37)

RGBA

rgba(221,36,37, 1)

HSL

hsl(359.68,73.12%,50.39%)

OKLCH (Modern CSS)

oklch(0.58 0.22 27.3)

CSS Variable

--color: #dd2425;

Preview

Readability and Typography

Headline Test

This text demonstrates the reading experience on this background color.

Headline Test

This text demonstrates the reading experience on this background color.

UI Component Set

This is an example alert bar using the selected color.

SOLIDSOFTOUTLINE

Product Mockup

4582 •••• •••• 9018

CARDHOLDER

JOHN DOE

VALID

12/28

Mobile application

Customer support

Hi! How can we help you today?

I love this new color! 😍

Data visualization

Weekly growth

+1,240

12.5%

WED

2,450

Contrast

Contrast and readability (WCAG)

On white background

4.82

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.35

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#dd2425#242425

ORIG

SIM

Deuteranopia (green)

#dd2425#97a625

ORIG

SIM

Tritanopia (blue)

#dd2425#d4707b

ORIG

SIM

Monochrome (color blind)

#dd2425#9f6257

Mixing guide

How to mix this color using physical paints or printing inks.

MIXING PALETTE

99%

RYB PIGMENTS

Cadmium red

Pigment

99%

Titanium white

Pigment

Unlike light, mixing paints makes colors darker. This simulation mimics the behavior of physical pigments.

Physical properties

Perceptual and light-related properties derived from the digital color.

Spectral relationship

Red hue

620–750 nm • closest visible-spectrum range

750 nm

380 nm

Visual temperature

Warm

A perceptual warm–cool classification. Kelvin does not apply to an arbitrary interface color.

Cool

Neutral

Warm

Luminance (brightness)

16.8%

Dark • relative luminance

50%

100%

An RGB color is produced by combined screen light, so this range is a visual comparison rather than an exact physical wavelength.

Gradient gallery

Generate premium CSS backgrounds and textures from your color.

Similar & Related Colors

Mathematically computed harmonies, shades, and similar tones for this color.

Chicken Comb

#DD2222

Red Hot Chili Pepper

#DB1D27

Piercing Red

#DD1122

Silken Ruby

#E81320

Turquoise

#24DDDC

Ochre

#DD8024

Cerise

#DD2482

Malachite

#25DD24

Persian Blue

#2425DD

Mountain Meadow

#24DD80

Persimmon

#FF6B58

Red Berry

#980000