#3F4C69

#3F4C69

Color Values

HEX

#3F4C69

RGB

63, 76, 105

HSL

221.4, 25.0%, 32.9%

HSV

221.4, 40.0%, 41.2%

CMYK

40.0%, 27.6%, 0.0%, 58.8%

OKLCH

0.4178 0.0515 265.6

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#3F4C69

#695C3F

Analogous

#3F6169

#473F69

#3F4C69

Triadic

#3F4C69

#693F4C

#4C693F

Split Complementary

#3F4C69

#69473F

#61693F

Tetradic

#3F4C69

#693F61

#695C3F

#3F6947

Color Blindness Simulation

Original

#3F4C69

Protanopia

#454562

Deuteranopia

#444360

Tritanopia

#405C5B

Achromatopsia

#4B4B4B

CSS Usage

background-color: #3F4C69;
color: #3F4C69;
border-color: #3F4C69;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F6F7F9
100
#E9ECF1
200
#D2D8E4
300
#B2BCD1
400
#8998B8
500
#60739F
600
#4D5C80
700
#3D4A66
800
#303A50
900
#262C3B
950
#181C25

Contrast Checker

Text on white

8.57:1

AA Pass AAA Pass

Text on black

2.45:1

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