#640507

#640507

Color Values

HEX

#640507

RGB

100, 5, 7

HSL

358.7, 90.5%, 20.6%

HSV

358.7, 95.0%, 39.2%

CMYK

0.0%, 95.0%, 93.0%, 60.8%

OKLCH

0.3201 0.1255 27.5

Properties

Warm Dark Nearest: RAL 3011 Brown Red

Color Harmonies

Complementary

#640507

#056462

Analogous

#640537

#643205

#640507

Triadic

#640507

#076405

#050764

Split Complementary

#640507

#056432

#053764

Tetradic

#640507

#376405

#056462

#320564

Color Blindness Simulation

Original

#640507

Protanopia

#3B3A07

Deuteranopia

#404806

Tritanopia

#5F0606

Achromatopsia

#191919

CSS Usage

background-color: #640507;
color: #640507;
border-color: #640507;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FDF1F2
100
#FBDFE0
200
#FCBBBC
300
#F98A8D
400
#F64B4F
500
#F30C11
600
#C20A0E
700
#9B080B
800
#790609
900
#58090B
950
#380607

Contrast Checker

Text on white

13.4:1

AA Pass AAA Pass

Text on black

1.57:1

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