#A8100F

#A8100F

Color Values

HEX

#A8100F

RGB

168, 16, 15

HSL

0.4, 83.6%, 35.9%

HSV

0.4, 91.1%, 65.9%

CMYK

0.0%, 90.5%, 91.1%, 34.1%

OKLCH

0.4656 0.1823 28.4

Properties

Warm Dark Nearest: RAL 3001 Signal Red

Color Harmonies

Complementary

#A8100F

#0FA7A8

Analogous

#A80F5B

#A85D0F

#A8100F

Triadic

#A8100F

#0FA810

#100FA8

Split Complementary

#A8100F

#0FA85D

#0F5BA8

Tetradic

#A8100F

#5BA80F

#0FA7A8

#5D0FA8

Color Blindness Simulation

Original

#A8100F

Protanopia

#66650F

Deuteranopia

#6F7A0F

Tritanopia

#A00F0F

Achromatopsia

#303030

CSS Usage

background-color: #A8100F;
color: #A8100F;
border-color: #A8100F;
Nearest Tailwind: Red 700 #B91C1C

Tailwind Shades

50
#FDF2F2
100
#FAE1E0
200
#F9BEBD
300
#F58F8F
400
#F05352
500
#EA1615
600
#BB1211
700
#960E0D
800
#750B0A
900
#550C0C
950
#360808

Contrast Checker

Text on white

7.65:1

AA Pass AAA Pass

Text on black

2.75:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026