#3F567B

#3F567B

Color Values

HEX

#3F567B

RGB

63, 86, 123

HSL

217.0, 32.3%, 36.5%

HSV

217.0, 48.8%, 48.2%

CMYK

48.8%, 30.1%, 0.0%, 51.8%

OKLCH

0.451 0.0673 259.6

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F567B

#7B643F

Analogous

#3F747B

#463F7B

#3F567B

Triadic

#3F567B

#7B3F56

#567B3F

Split Complementary

#3F567B

#7B463F

#747B3F

Tetradic

#3F567B

#7B3F74

#7B643F

#3F7B46

Color Blindness Simulation

Original

#3F567B

Protanopia

#494972

Deuteranopia

#484670

Tritanopia

#406B69

Achromatopsia

#545454

CSS Usage

background-color: #3F567B;
color: #3F567B;
border-color: #3F567B;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F5F7F9
100
#E8ECF2
200
#D0D9E7
300
#AEBDD6
400
#829ABF
500
#5676A9
600
#455E87
700
#374B6C
800
#2B3B54
900
#222D3F
950
#161D27

Contrast Checker

Text on white

7.42:1

AA Pass AAA Pass

Text on black

2.83:1

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