#40495B

#40495B

Color Values

HEX

#40495B

RGB

64, 73, 91

HSL

220.0, 17.4%, 30.4%

HSV

220.0, 29.7%, 35.7%

CMYK

29.7%, 19.8%, 0.0%, 64.3%

OKLCH

0.4046 0.0326 264.1

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#40495B

#5B5240

Analogous

#40575B

#45405B

#40495B

Triadic

#40495B

#5B4049

#495B40

Split Complementary

#40495B

#5B4540

#575B40

Tetradic

#40495B

#5B4057

#5B5240

#405B45

Color Blindness Simulation

Original

#40495B

Protanopia

#444457

Deuteranopia

#434356

Tritanopia

#405352

Achromatopsia

#484848

CSS Usage

background-color: #40495B;
color: #40495B;
border-color: #40495B;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F7F8
100
#EBECF0
200
#D5D9E2
300
#B7BECC
400
#909BB1
500
#697896
600
#546078
700
#434D60
800
#353C4B
900
#292E38
950
#1A1D23

Contrast Checker

Text on white

9.04:1

AA Pass AAA Pass

Text on black

2.32:1

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