#1F3F64

#1F3F64

Color Values

HEX

#1F3F64

RGB

31, 63, 100

HSL

212.2, 52.7%, 25.7%

HSV

212.2, 69.0%, 39.2%

CMYK

69.0%, 37.0%, 0.0%, 60.8%

OKLCH

0.3626 0.0748 253.5

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#1F3F64

#64441F

Analogous

#1F6264

#221F64

#1F3F64

Triadic

#1F3F64

#641F3F

#3F641F

Split Complementary

#1F3F64

#64221F

#62641F

Tetradic

#1F3F64

#641F62

#64441F

#1F6422

Color Blindness Simulation

Original

#1F3F64

Protanopia

#2D2D5B

Deuteranopia

#2B2959

Tritanopia

#215452

Achromatopsia

#3B3B3B

CSS Usage

background-color: #1F3F64;
color: #1F3F64;
border-color: #1F3F64;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F4F7FB
100
#E5EDF5
200
#C8DAEE
300
#A2BFE2
400
#6F9DD2
500
#3C7BC3
600
#30629C
700
#274E7D
800
#1E3D61
900
#192F47
950
#101E2D

Contrast Checker

Text on white

10.75:1

AA Pass AAA Pass

Text on black

1.95:1

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