#3F3654

#3F3654

Color Values

HEX

#3F3654

RGB

63, 54, 84

HSL

258.0, 21.7%, 27.1%

HSV

258.0, 35.7%, 32.9%

CMYK

25.0%, 35.7%, 0.0%, 67.1%

OKLCH

0.3557 0.0522 297.5

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#3F3654

#4B5436

Analogous

#363C54

#4E3654

#3F3654

Triadic

#3F3654

#543F36

#36543F

Split Complementary

#3F3654

#544E36

#3C5436

Tetradic

#3F3654

#54363C

#4B5436

#36544E

Color Blindness Simulation

Original

#3F3654

Protanopia

#3B3B4D

Deuteranopia

#3C3C4B

Tritanopia

#3F4746

Achromatopsia

#3A3A3A

CSS Usage

background-color: #3F3654;
color: #3F3654;
border-color: #3F3654;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D8D4E3
300
#BCB5CF
400
#988CB5
500
#74649B
600
#5D507C
700
#4B4063
800
#3A324E
900
#2D273A
950
#1C1925

Contrast Checker

Text on white

11.25:1

AA Pass AAA Pass

Text on black

1.87:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026