#3F366A

#3F366A

Color Values

HEX

#3F366A

RGB

63, 54, 106

HSL

250.4, 32.5%, 31.4%

HSV

250.4, 49.1%, 41.6%

CMYK

40.6%, 49.1%, 0.0%, 58.4%

OKLCH

0.3689 0.0872 289.4

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#3F366A

#616A36

Analogous

#36476A

#59366A

#3F366A

Triadic

#3F366A

#6A3F36

#366A3F

Split Complementary

#3F366A

#6A5936

#476A36

Tetradic

#3F366A

#6A3647

#616A36

#366A59

Color Blindness Simulation

Original

#3F366A

Protanopia

#3B3B5D

Deuteranopia

#3C3C5A

Tritanopia

#3F5351

Achromatopsia

#3C3C3C

CSS Usage

background-color: #3F366A;
color: #3F366A;
border-color: #3F366A;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F6F5F9
100
#EAE8F2
200
#D4D0E7
300
#B5AED6
400
#8D82BF
500
#6456A9
600
#504587
700
#40376C
800
#322B54
900
#27223F
950
#191628

Contrast Checker

Text on white

10.79:1

AA Pass AAA Pass

Text on black

1.95:1

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