#3F3550

#3F3550

Color Values

HEX

#3F3550

RGB

63, 53, 80

HSL

262.2, 20.3%, 26.1%

HSV

262.2, 33.8%, 31.4%

CMYK

21.2%, 33.7%, 0.0%, 68.6%

OKLCH

0.3514 0.0477 301.0

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#3F3550

#465035

Analogous

#353950

#4D3550

#3F3550

Triadic

#3F3550

#503F35

#35503F

Split Complementary

#3F3550

#504D35

#395035

Tetradic

#3F3550

#503539

#465035

#35504D

Color Blindness Simulation

Original

#3F3550

Protanopia

#3B3B49

Deuteranopia

#3B3C48

Tritanopia

#3E4443

Achromatopsia

#393939

CSS Usage

background-color: #3F3550;
color: #3F3550;
border-color: #3F3550;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D9D4E3
300
#BFB5CE
400
#9C8DB4
500
#796699
600
#61517B
700
#4D4162
800
#3C334D
900
#2E2839
950
#1D1924

Contrast Checker

Text on white

11.44:1

AA Pass AAA Pass

Text on black

1.84:1

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