#1F374F

#1F374F

Color Values

HEX

#1F374F

RGB

31, 55, 79

HSL

210.0, 43.6%, 21.6%

HSV

210.0, 60.8%, 31.0%

CMYK

60.8%, 30.4%, 0.0%, 69.0%

OKLCH

0.3291 0.0524 249.7

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1F374F

#4F371F

Analogous

#1F4F4F

#1F1F4F

#1F374F

Triadic

#1F374F

#4F1F37

#374F1F

Split Complementary

#1F374F

#4F1F1F

#4F4F1F

Tetradic

#1F374F

#4F1F4F

#4F371F

#1F4F1F

Color Blindness Simulation

Original

#1F374F

Protanopia

#292A49

Deuteranopia

#282648

Tritanopia

#204544

Achromatopsia

#343434

CSS Usage

background-color: #1F374F;
color: #1F374F;
border-color: #1F374F;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F5F7FA
100
#E7EDF4
200
#CCDBEB
300
#A7C2DC
400
#78A1CA
500
#4880B7
600
#3A6692
700
#2E5275
800
#24405C
900
#1D3043
950
#131F2B

Contrast Checker

Text on white

12.23:1

AA Pass AAA Pass

Text on black

1.72:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026