#40566D

#40566D

Color Values

HEX

#40566D

RGB

64, 86, 109

HSL

210.7, 26.0%, 33.9%

HSV

210.7, 41.3%, 42.7%

CMYK

41.3%, 21.1%, 0.0%, 57.3%

OKLCH

0.4447 0.0467 250.0

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#40566D

#6D5740

Analogous

#406C6D

#40406D

#40566D

Triadic

#40566D

#6D4056

#566D40

Split Complementary

#40566D

#6D4040

#6C6D40

Tetradic

#40566D

#6D406C

#6D5740

#406D40

Color Blindness Simulation

Original

#40566D

Protanopia

#4A4A67

Deuteranopia

#484766

Tritanopia

#416362

Achromatopsia

#535353

CSS Usage

background-color: #40566D;
color: #40566D;
border-color: #40566D;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F6F7F9
100
#E9EDF1
200
#D2DBE5
300
#B2C1D2
400
#88A0B9
500
#5E7FA1
600
#4B6581
700
#3C5167
800
#2F3F50
900
#25303C
950
#171E26

Contrast Checker

Text on white

7.58:1

AA Pass AAA Pass

Text on black

2.77:1

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