#660B01

#660B01

Color Values

HEX

#660B01

RGB

102, 11, 1

HSL

5.9, 98.1%, 20.2%

HSV

5.9, 99.0%, 40.0%

CMYK

0.0%, 89.2%, 99.0%, 60.0%

OKLCH

0.3277 0.1247 31.4

Properties

Warm Dark Nearest: RAL 3011 Brown Red

Color Harmonies

Complementary

#660B01

#015C66

Analogous

#66012A

#663D01

#660B01

Triadic

#660B01

#01660B

#0B0166

Split Complementary

#660B01

#01663D

#012A66

Tetradic

#660B01

#2A6601

#015C66

#3D0166

Color Blindness Simulation

Original

#660B01

Protanopia

#3F3E03

Deuteranopia

#444B04

Tritanopia

#610506

Achromatopsia

#1E1E1E

CSS Usage

background-color: #660B01;
color: #660B01;
border-color: #660B01;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FEF2F1
100
#FCE1DE
200
#FEBFB8
300
#FE9286
400
#FD5644
500
#FD1B02
600
#CA1602
700
#A21102
800
#7E0E01
900
#5B0E06
950
#3A0904

Contrast Checker

Text on white

13.02:1

AA Pass AAA Pass

Text on black

1.61:1

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