#AC0B09

#AC0B09

Color Values

HEX

#AC0B09

RGB

172, 11, 9

HSL

0.7, 90.1%, 35.5%

HSV

0.7, 94.8%, 67.5%

CMYK

0.0%, 93.6%, 94.8%, 32.5%

OKLCH

0.4713 0.188 28.9

Properties

Warm Dark Nearest: RAL 2002 Vermilion

Color Harmonies

Complementary

#AC0B09

#09AAAC

Analogous

#AC0959

#AC5C09

#AC0B09

Triadic

#AC0B09

#09AC0B

#0B09AC

Split Complementary

#AC0B09

#09AC5C

#0959AC

Tetradic

#AC0B09

#59AC09

#09AAAC

#5C09AC

Color Blindness Simulation

Original

#AC0B09

Protanopia

#666509

Deuteranopia

#707C0A

Tritanopia

#A40A0A

Achromatopsia

#2D2D2D

CSS Usage

background-color: #AC0B09;
color: #AC0B09;
border-color: #AC0B09;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FDF2F1
100
#FBE0DF
200
#FBBCBB
300
#F98C8B
400
#F64E4C
500
#F20F0D
600
#C20C0A
700
#9B0A08
800
#790806
900
#580A09
950
#370606

Contrast Checker

Text on white

7.48:1

AA Pass AAA Pass

Text on black

2.81:1

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