#404253

#404253

Color Values

HEX

#404253

RGB

64, 66, 83

HSL

233.7, 12.9%, 28.8%

HSV

233.7, 22.9%, 32.5%

CMYK

22.9%, 20.5%, 0.0%, 67.5%

OKLCH

0.3841 0.029 279.7

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#404253

#535140

Analogous

#404B53

#474053

#404253

Triadic

#404253

#534042

#425340

Split Complementary

#404253

#534740

#4B5340

Tetradic

#404253

#53404B

#535140

#405347

Color Blindness Simulation

Original

#404253

Protanopia

#41414F

Deuteranopia

#41414E

Tritanopia

#404C4B

Achromatopsia

#434343

CSS Usage

background-color: #404253;
color: #404253;
border-color: #404253;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F7F7F8
100
#EBECEF
200
#D7D8E0
300
#BABCCA
400
#9497AD
500
#6F7390
600
#595C73
700
#47495C
800
#383948
900
#2B2C36
950
#1B1C22

Contrast Checker

Text on white

9.9:1

AA Pass AAA Pass

Text on black

2.12:1

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