#3F6DB2

#3F6DB2

Color Values

HEX

#3F6DB2

RGB

63, 109, 178

HSL

216.0, 47.7%, 47.3%

HSV

216.0, 64.6%, 69.8%

CMYK

64.6%, 38.8%, 0.0%, 30.2%

OKLCH

0.5356 0.1201 258.3

Properties

Cool Dark Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#3F6DB2

#B2843F

Analogous

#3FA7B2

#4B3FB2

#3F6DB2

Triadic

#3F6DB2

#B23F6D

#6DB23F

Split Complementary

#3F6DB2

#B24B3F

#A7B23F

Tetradic

#3F6DB2

#B23FA7

#B2843F

#3FB24B

Color Blindness Simulation

Original

#3F6DB2

Protanopia

#5353A1

Deuteranopia

#504D9D

Tritanopia

#419491

Achromatopsia

#686868

CSS Usage

background-color: #3F6DB2;
color: #3F6DB2;
border-color: #3F6DB2;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F7FA
100
#E6ECF4
200
#CAD8EC
300
#A5BCDF
400
#7498CE
500
#4373BC
600
#355C97
700
#2B4A79
800
#213A5E
900
#1C2C45
950
#111C2C

Contrast Checker

Text on white

5.2:1

AA Pass AAA Fail

Text on black

4.04:1

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