#404659

#404659

Color Values

HEX

#404659

RGB

64, 70, 89

HSL

225.6, 16.3%, 30.0%

HSV

225.6, 28.1%, 34.9%

CMYK

28.1%, 21.3%, 0.0%, 65.1%

OKLCH

0.3965 0.0331 271.2

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#404659

#595340

Analogous

#405259

#474059

#404659

Triadic

#404659

#594046

#465940

Split Complementary

#404659

#594740

#525940

Tetradic

#404659

#594052

#595340

#405947

Color Blindness Simulation

Original

#404659

Protanopia

#434354

Deuteranopia

#424253

Tritanopia

#405150

Achromatopsia

#464646

CSS Usage

background-color: #404659;
color: #404659;
border-color: #404659;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F7F8
100
#EBECF0
200
#D5D8E1
300
#B8BDCC
400
#9199B0
500
#6B7594
600
#555D77
700
#444B5F
800
#353A4A
900
#292D38
950
#1A1C23

Contrast Checker

Text on white

9.38:1

AA Pass AAA Pass

Text on black

2.24:1

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