#660F0F

#660F0F

Color Values

HEX

#660F0F

RGB

102, 15, 15

HSL

0.0, 74.4%, 22.9%

HSV

0.0, 85.3%, 40.0%

CMYK

0.0%, 85.3%, 85.3%, 60.0%

OKLCH

0.332 0.1201 26.8

Properties

Warm Dark Nearest: RAL 3011 Brown Red

Color Harmonies

Complementary

#660F0F

#0F6666

Analogous

#660F3A

#663A0F

#660F0F

Triadic

#660F0F

#0F660F

#0F0F66

Split Complementary

#660F0F

#0F663A

#0F3A66

Tetradic

#660F0F

#3A660F

#0F6666

#3A0F66

Color Blindness Simulation

Original

#660F0F

Protanopia

#40400F

Deuteranopia

#454C0F

Tritanopia

#620F0F

Achromatopsia

#212121

CSS Usage

background-color: #660F0F;
color: #660F0F;
border-color: #660F0F;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FCF3F3
100
#F8E2E2
200
#F6C1C1
300
#EF9494
400
#E75A5A
500
#DE2121
600
#B21A1A
700
#8E1515
800
#6F1010
900
#511010
950
#330A0A

Contrast Checker

Text on white

12.8:1

AA Pass AAA Pass

Text on black

1.64:1

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