#AA040D

#AA040D

Color Values

HEX

#AA040D

RGB

170, 4, 13

HSL

356.7, 95.4%, 34.1%

HSV

356.7, 97.6%, 66.7%

CMYK

0.0%, 97.6%, 92.4%, 33.3%

OKLCH

0.4653 0.1881 27.8

Properties

Warm Dark Nearest: firebrick

Color Harmonies

Complementary

#AA040D

#04AAA1

Analogous

#AA0460

#AA4E04

#AA040D

Triadic

#AA040D

#0DAA04

#040DAA

Split Complementary

#AA040D

#04AA4E

#0460AA

Tetradic

#AA040D

#60AA04

#04AAA1

#4E04AA

Color Blindness Simulation

Original

#AA040D

Protanopia

#62610B

Deuteranopia

#6C780A

Tritanopia

#A20909

Achromatopsia

#282828

CSS Usage

background-color: #AA040D;
color: #AA040D;
border-color: #AA040D;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FEF1F2
100
#FCDFE0
200
#FDB9BD
300
#FC878E
400
#FB4751
500
#F90613
600
#C7050F
700
#9F040C
800
#7D030A
900
#5A070B
950
#390407

Contrast Checker

Text on white

7.69:1

AA Pass AAA Pass

Text on black

2.73:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026