#AC1515

#AC1515

Color Values

HEX

#AC1515

RGB

172, 21, 21

HSL

0.0, 78.2%, 37.8%

HSV

0.0, 87.8%, 67.5%

CMYK

0.0%, 87.8%, 87.8%, 32.5%

OKLCH

0.4762 0.1831 27.9

Properties

Warm Dark Nearest: firebrick

Color Harmonies

Complementary

#AC1515

#15ACAC

Analogous

#AC1560

#AC6015

#AC1515

Triadic

#AC1515

#15AC15

#1515AC

Split Complementary

#AC1515

#15AC60

#1560AC

Tetradic

#AC1515

#60AC15

#15ACAC

#6015AC

Color Blindness Simulation

Original

#AC1515

Protanopia

#6B6915

Deuteranopia

#737F15

Tritanopia

#A41515

Achromatopsia

#353535

CSS Usage

background-color: #AC1515;
color: #AC1515;
border-color: #AC1515;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FCF2F2
100
#F9E1E1
200
#F7BFBF
300
#F29292
400
#EA5757
500
#E31C1C
600
#B61616
700
#911212
800
#720E0E
900
#530E0E
950
#340909

Contrast Checker

Text on white

7.31:1

AA Pass AAA Pass

Text on black

2.87:1

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