#1F2399

#1F2399

Color Values

HEX

#1F2399

RGB

31, 35, 153

HSL

238.0, 66.3%, 36.1%

HSV

238.0, 79.7%, 60.0%

CMYK

79.7%, 77.1%, 0.0%, 40.0%

OKLCH

0.3533 0.1844 270.6

Properties

Cool Dark Nearest: navy

Color Harmonies

Complementary

#1F2399

#99951F

Analogous

#1F6099

#581F99

#1F2399

Triadic

#1F2399

#991F23

#23991F

Split Complementary

#1F2399

#99581F

#60991F

Tetradic

#1F2399

#991F60

#99951F

#1F9958

Color Blindness Simulation

Original

#1F2399

Protanopia

#21217C

Deuteranopia

#202076

Tritanopia

#1F6661

Achromatopsia

#2B2B2B

CSS Usage

background-color: #1F2399;
color: #1F2399;
border-color: #1F2399;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F3FC
100
#E3E4F7
200
#C4C5F3
300
#999CEA
400
#6266DF
500
#2B31D4
600
#2227AA
700
#1B1F88
800
#15186A
900
#14154D
950
#0C0E31

Contrast Checker

Text on white

11.94:1

AA Pass AAA Pass

Text on black

1.76:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026