#40576F

#40576F

Color Values

HEX

#40576F

RGB

64, 87, 111

HSL

210.6, 26.9%, 34.3%

HSV

210.6, 42.3%, 43.5%

CMYK

42.3%, 21.6%, 0.0%, 56.5%

OKLCH

0.4481 0.0486 250.0

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#40576F

#6F5840

Analogous

#406F6F

#40406F

#40576F

Triadic

#40576F

#6F4057

#576F40

Split Complementary

#40576F

#6F4040

#6F6F40

Tetradic

#40576F

#6F406F

#6F5840

#406F40

Color Blindness Simulation

Original

#40576F

Protanopia

#4A4A69

Deuteranopia

#494768

Tritanopia

#416564

Achromatopsia

#545454

CSS Usage

background-color: #40576F;
color: #40576F;
border-color: #40576F;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F6F7F9
100
#E9EDF1
200
#D2DBE5
300
#B1C1D2
400
#87A0BA
500
#5D7FA2
600
#4B6581
700
#3C5168
800
#2F3F51
900
#25303C
950
#171E26

Contrast Checker

Text on white

7.47:1

AA Pass AAA Pass

Text on black

2.81:1

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