#A3000C

#A3000C

Color Values

HEX

#A3000C

RGB

163, 0, 12

HSL

355.6, 100.0%, 32.0%

HSV

355.6, 100.0%, 63.9%

CMYK

0.0%, 100.0%, 92.6%, 36.1%

OKLCH

0.4499 0.1836 27.4

Properties

Warm Dark Nearest: RAL 3001 Signal Red

Color Harmonies

Complementary

#A3000C

#00A397

Analogous

#A3005E

#A34600

#A3000C

Triadic

#A3000C

#0CA300

#000CA3

Split Complementary

#A3000C

#00A346

#005EA3

Tetradic

#A3000C

#5EA300

#00A397

#4600A3

Color Blindness Simulation

Original

#A3000C

Protanopia

#5C5B09

Deuteranopia

#667208

Tritanopia

#9B0706

Achromatopsia

#242424

CSS Usage

background-color: #A3000C;
color: #A3000C;
border-color: #A3000C;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FEF1F2
100
#FCDEE0
200
#FFB8BD
300
#FF858E
400
#FF4250
500
#FF0013
600
#CC000F
700
#A3000C
800
#800009
900
#5C050B
950
#3A0307

Contrast Checker

Text on white

8.19:1

AA Pass AAA Pass

Text on black

2.56:1

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