#3F577D

#3F577D

Color Values

HEX

#3F577D

RGB

63, 87, 125

HSL

216,8, 33,0%, 36,9%

HSV

216,8, 49,6%, 49,0%

CMYK

49,6%, 30,4%, 0,0%, 51,0%

OKLCH

0,4545 0,0692 259,3

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F577D

#7D653F

Analogous

#3F767D

#463F7D

#3F577D

Triadic

#3F577D

#7D3F57

#577D3F

Split Complementary

#3F577D

#7D463F

#767D3F

Tetradic

#3F577D

#7D3F76

#7D653F

#3F7D46

Color Blindness Simulation

Original

#3F577D

Protanopia

#494A74

Deuteranopia

#484672

Tritanopia

#406D6B

Achromatopsia

#555555

CSS Usage

background-color: #3F577D;
color: #3F577D;
border-color: #3F577D;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F5F7F9
100
#E8ECF2
200
#D0D9E7
300
#AEBDD6
400
#829AC0
500
#5576AA
600
#445E88
700
#374B6D
800
#2B3B55
900
#222D3F
950
#161D28

Contrast Checker

Text on white

7,32:1

AA Pass AAA Pass

Text on black

2,87:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026