#540404

#540404

Color Values

HEX

#540404

RGB

84, 4, 4

HSL

0.0, 90.9%, 17.3%

HSV

0.0, 95.2%, 32.9%

CMYK

0.0%, 95.2%, 95.2%, 67.1%

OKLCH

0.2839 0.1109 28.2

Properties

Warm Dark Nearest: RAL 3004 Purple Red

Color Harmonies

Complementary

#540404

#045454

Analogous

#54042C

#542C04

#540404

Triadic

#540404

#045404

#040454

Split Complementary

#540404

#04542C

#042C54

Tetradic

#540404

#2C5404

#045454

#2C0454

Color Blindness Simulation

Original

#540404

Protanopia

#313104

Deuteranopia

#363C04

Tritanopia

#500404

Achromatopsia

#151515

CSS Usage

background-color: #540404;
color: #540404;
border-color: #540404;
Nearest Tailwind: Red 950 #450A0A

Tailwind Shades

50
#FDF1F1
100
#FBDFDF
200
#FCBBBB
300
#F98A8A
400
#F64B4B
500
#F30C0C
600
#C30909
700
#9C0707
800
#7A0606
900
#580909
950
#380606

Contrast Checker

Text on white

15.04:1

AA Pass AAA Pass

Text on black

1.4:1

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