#3F6CB2

#3F6CB2

Color Values

HEX

#3F6CB2

RGB

63, 108, 178

HSL

216,5, 47,7%, 47,3%

HSV

216,5, 64,6%, 69,8%

CMYK

64,6%, 39,3%, 0,0%, 30,2%

OKLCH

0,5333 0,1212 258,9

Properties

Cool Dark Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#3F6CB2

#B2853F

Analogous

#3FA6B2

#4C3FB2

#3F6CB2

Triadic

#3F6CB2

#B23F6C

#6CB23F

Split Complementary

#3F6CB2

#B24C3F

#A6B23F

Tetradic

#3F6CB2

#B23FA6

#B2853F

#3FB24C

Color Blindness Simulation

Original

#3F6CB2

Protanopia

#5253A1

Deuteranopia

#504C9D

Tritanopia

#419491

Achromatopsia

#676767

CSS Usage

background-color: #3F6CB2;
color: #3F6CB2;
border-color: #3F6CB2;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F7FA
100
#E6ECF4
200
#CAD8EC
300
#A5BBDF
400
#7497CE
500
#4372BC
600
#355B97
700
#2B4979
800
#21395E
900
#1C2C45
950
#111C2C

Contrast Checker

Text on white

5,25:1

AA Pass AAA Fail

Text on black

4,0:1

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