#660C0B

#660C0B

Color Values

HEX

#660C0B

RGB

102, 12, 11

HSL

0.7, 80.5%, 22.2%

HSV

0.7, 89.2%, 40.0%

CMYK

0.0%, 88.2%, 89.2%, 60.0%

OKLCH

0.3293 0.1227 27.7

Properties

Warm Dark Nearest: RAL 3011 Brown Red

Color Harmonies

Complementary

#660C0B

#0B6566

Analogous

#660B38

#663A0B

#660C0B

Triadic

#660C0B

#0B660C

#0C0B66

Split Complementary

#660C0B

#0B663A

#0B3866

Tetradic

#660C0B

#38660B

#0B6566

#3A0B66

Color Blindness Simulation

Original

#660C0B

Protanopia

#3F3E0B

Deuteranopia

#444B0B

Tritanopia

#610B0B

Achromatopsia

#1F1F1F

CSS Usage

background-color: #660C0B;
color: #660C0B;
border-color: #660C0B;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FDF2F2
100
#F9E1E1
200
#F8BFBF
300
#F39291
400
#ED5655
500
#E61B19
600
#B81614
700
#931110
800
#730E0C
900
#540E0D
950
#350908

Contrast Checker

Text on white

12.94:1

AA Pass AAA Pass

Text on black

1.62:1

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