#3F7EC8

#3F7EC8

Color Values

HEX

#3F7EC8

RGB

63, 126, 200

HSL

212.4, 55.5%, 51.6%

HSV

212.4, 68.5%, 78.4%

CMYK

68.5%, 37.0%, 0.0%, 21.6%

OKLCH

0.5868 0.1313 254.0

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#3F7EC8

#C8893F

Analogous

#3FC3C8

#453FC8

#3F7EC8

Triadic

#3F7EC8

#C83F7E

#7EC83F

Split Complementary

#3F7EC8

#C8453F

#C3C83F

Tetradic

#3F7EC8

#C83FC3

#C8893F

#3FC845

Color Blindness Simulation

Original

#3F7EC8

Protanopia

#5A5BB6

Deuteranopia

#5752B2

Tritanopia

#42A8A5

Achromatopsia

#767676

CSS Usage

background-color: #3F7EC8;
color: #3F7EC8;
border-color: #3F7EC8;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F7FB
100
#E5ECF6
200
#C7DAEF
300
#A0BFE4
400
#6C9CD5
500
#397AC6
600
#2D619F
700
#244E7F
800
#1C3D63
900
#182F49
950
#0F1D2E

Contrast Checker

Text on white

4.18:1

AA Fail AAA Fail

Text on black

5.03:1

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