#1F4380

#1F4380

Color Values

HEX

#1F4380

RGB

31, 67, 128

HSL

217.7, 61.0%, 31.2%

HSV

217.7, 75.8%, 50.2%

CMYK

75.8%, 47.7%, 0.0%, 49.8%

OKLCH

0.3916 0.1112 260.3

Properties

Cool Dark Nearest: RAL 5017 Traffic Blue

Color Harmonies

Complementary

#1F4380

#805C1F

Analogous

#1F7480

#2B1F80

#1F4380

Triadic

#1F4380

#801F43

#43801F

Split Complementary

#1F4380

#802B1F

#74801F

Tetradic

#1F4380

#801F74

#805C1F

#1F802B

Color Blindness Simulation

Original

#1F4380

Protanopia

#2F2F71

Deuteranopia

#2C2A6E

Tritanopia

#216663

Achromatopsia

#404040

CSS Usage

background-color: #1F4380;
color: #1F4380;
border-color: #1F4380;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F3F6FB
100
#E4EBF6
200
#C6D6F1
300
#9CB8E7
400
#6792DA
500
#326CCD
600
#2856A4
700
#204583
800
#193667
900
#162A4B
950
#0E1A2F

Contrast Checker

Text on white

9.66:1

AA Pass AAA Pass

Text on black

2.17:1

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