#3F45F9

#3F45F9

Color Values

HEX

#3F45F9

RGB

63, 69, 249

HSL

238.1, 93.9%, 61.2%

HSV

238.1, 74.7%, 97.6%

CMYK

74.7%, 72.3%, 0.0%, 2.4%

OKLCH

0.5188 0.2584 271.6

Properties

Cool Dark Nearest: blueviolet

Color Harmonies

Complementary

#3F45F9

#F9F33F

Analogous

#3FA2F9

#963FF9

#3F45F9

Triadic

#3F45F9

#F93F45

#45F93F

Split Complementary

#3F45F9

#F9963F

#A2F93F

Tetradic

#3F45F9

#F93FA2

#F9F33F

#3FF996

Color Blindness Simulation

Original

#3F45F9

Protanopia

#4242CD

Deuteranopia

#4141C3

Tritanopia

#3FABA4

Achromatopsia

#515151

CSS Usage

background-color: #3F45F9;
color: #3F45F9;
border-color: #3F45F9;
Nearest Tailwind: Indigo 600 #4F46E5

Tailwind Shades

50
#F1F2FD
100
#DFE0FB
200
#BABCFD
300
#888CFB
400
#484EF9
500
#080FF7
600
#060CC6
700
#050A9E
800
#04087C
900
#080A59
950
#050638

Contrast Checker

Text on white

6.12:1

AA Pass AAA Fail

Text on black

3.43:1

AA Fail 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