#3F5570

#3F5570

Color Values

HEX

#3F5570

RGB

63, 85, 112

HSL

213.1, 28.0%, 34.3%

HSV

213.1, 43.7%, 43.9%

CMYK

43.7%, 24.1%, 0.0%, 56.1%

OKLCH

0.443 0.0523 253.9

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F5570

#705A3F

Analogous

#3F6D70

#423F70

#3F5570

Triadic

#3F5570

#703F55

#55703F

Split Complementary

#3F5570

#70423F

#6D703F

Tetradic

#3F5570

#703F6D

#705A3F

#3F7042

Color Blindness Simulation

Original

#3F5570

Protanopia

#494969

Deuteranopia

#474668

Tritanopia

#406463

Achromatopsia

#525252

CSS Usage

background-color: #3F5570;
color: #3F5570;
border-color: #3F5570;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F6F7F9
100
#E9EDF1
200
#D1DAE5
300
#B1C0D3
400
#869EBB
500
#5C7CA3
600
#496383
700
#3B4F68
800
#2E3E52
900
#242F3D
950
#171E26

Contrast Checker

Text on white

7.65:1

AA Pass AAA Pass

Text on black

2.74:1

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