#3F8ACB

#3F8ACB

Color Values

HEX

#3F8ACB

RGB

63, 138, 203

HSL

207.9, 57.4%, 52.2%

HSV

207.9, 69.0%, 79.6%

CMYK

69.0%, 32.0%, 0.0%, 20.4%

OKLCH

0.6157 0.1236 247.6

Properties

Cool Light Nearest: RAL 5012 Light Blue

Color Harmonies

Complementary

#3F8ACB

#CB803F

Analogous

#3FCBC6

#3F44CB

#3F8ACB

Triadic

#3F8ACB

#CB3F8A

#8ACB3F

Split Complementary

#3F8ACB

#CB3F44

#CBC63F

Tetradic

#3F8ACB

#C63FCB

#CB803F

#44CB3F

Color Blindness Simulation

Original

#3F8ACB

Protanopia

#5F60BB

Deuteranopia

#5B56B8

Tritanopia

#43AFAC

Achromatopsia

#7F7F7F

CSS Usage

background-color: #3F8ACB;
color: #3F8ACB;
border-color: #3F8ACB;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F8FB
100
#E4EEF6
200
#C7DDF0
300
#9FC4E5
400
#6AA4D7
500
#3685C9
600
#2B6AA1
700
#235580
800
#1B4264
900
#173249
950
#0F202E

Contrast Checker

Text on white

3.68:1

AA Fail AAA Fail

Text on black

5.71:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026