#404152

#404152

Color Values

HEX

#404152

RGB

64, 65, 82

HSL

236.7, 12.3%, 28.6%

HSV

236.7, 22.0%, 32.2%

CMYK

22.0%, 20.7%, 0.0%, 67.8%

OKLCH

0.3812 0.0289 282.3

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#404152

#525140

Analogous

#404A52

#484052

#404152

Triadic

#404152

#524041

#415240

Split Complementary

#404152

#524840

#4A5240

Tetradic

#404152

#52404A

#525140

#405248

Color Blindness Simulation

Original

#404152

Protanopia

#40404E

Deuteranopia

#40404D

Tritanopia

#404B4A

Achromatopsia

#424242

CSS Usage

background-color: #404152;
color: #404152;
border-color: #404152;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F7F7F8
100
#EBEBEF
200
#D7D7E0
300
#BABBC9
400
#9596AC
500
#70728F
600
#595B73
700
#48495C
800
#383948
900
#2B2C36
950
#1B1C22

Contrast Checker

Text on white

10.02:1

AA Pass AAA Pass

Text on black

2.1:1

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