#3F6CB4

#3F6CB4

Color Values

HEX

#3F6CB4

RGB

63, 108, 180

HSL

216.9, 48.1%, 47.6%

HSV

216.9, 65.0%, 70.6%

CMYK

65.0%, 40.0%, 0.0%, 29.4%

OKLCH

0.5345 0.124 259.4

Properties

Cool Dark Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#3F6CB4

#B4873F

Analogous

#3FA6B4

#4C3FB4

#3F6CB4

Triadic

#3F6CB4

#B43F6C

#6CB43F

Split Complementary

#3F6CB4

#B44C3F

#A6B43F

Tetradic

#3F6CB4

#B43FA6

#B4873F

#3FB44C

Color Blindness Simulation

Original

#3F6CB4

Protanopia

#5253A3

Deuteranopia

#504C9E

Tritanopia

#419592

Achromatopsia

#686868

CSS Usage

background-color: #3F6CB4;
color: #3F6CB4;
border-color: #3F6CB4;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F7FA
100
#E6EBF4
200
#CAD7EC
300
#A4BBDF
400
#7396CE
500
#4271BD
600
#355B97
700
#2A4979
800
#21395E
900
#1B2C45
950
#111C2C

Contrast Checker

Text on white

5.23:1

AA Pass AAA Fail

Text on black

4.02:1

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