#A61313

#A61313

Color Values

HEX

#A61313

RGB

166, 19, 19

HSL

0.0, 79.5%, 36.3%

HSV

0.0, 88.6%, 65.1%

CMYK

0.0%, 88.6%, 88.6%, 34.9%

OKLCH

0.4633 0.1789 28.0

Properties

Warm Dark Nearest: RAL 3001 Signal Red

Color Harmonies

Complementary

#A61313

#13A6A6

Analogous

#A6135D

#A65D13

#A61313

Triadic

#A61313

#13A613

#1313A6

Split Complementary

#A61313

#13A65D

#135DA6

Tetradic

#A61313

#5DA613

#13A6A6

#5D13A6

Color Blindness Simulation

Original

#A61313

Protanopia

#666513

Deuteranopia

#6F7A13

Tritanopia

#9F1313

Achromatopsia

#323232

CSS Usage

background-color: #A61313;
color: #A61313;
border-color: #A61313;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FDF2F2
100
#F9E1E1
200
#F8BFBF
300
#F29191
400
#EC5656
500
#E51A1A
600
#B71515
700
#921111
800
#720D0D
900
#530E0E
950
#340909

Contrast Checker

Text on white

7.71:1

AA Pass AAA Pass

Text on black

2.72:1

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