#1F3D58

#1F3D58

Color Values

HEX

#1F3D58

RGB

31, 61, 88

HSL

208.4, 47.9%, 23.3%

HSV

208.4, 64.8%, 34.5%

CMYK

64.8%, 30.7%, 0.0%, 65.5%

OKLCH

0.3502 0.0596 247.5

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1F3D58

#583A1F

Analogous

#1F5856

#1F2058

#1F3D58

Triadic

#1F3D58

#581F3D

#3D581F

Split Complementary

#1F3D58

#581F20

#58561F

Tetradic

#1F3D58

#561F58

#583A1F

#20581F

Color Blindness Simulation

Original

#1F3D58

Protanopia

#2C2C51

Deuteranopia

#2A2850

Tritanopia

#204C4B

Achromatopsia

#393939

CSS Usage

background-color: #1F3D58;
color: #1F3D58;
border-color: #1F3D58;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F4F8FA
100
#E6EEF4
200
#CADCEC
300
#A4C3DF
400
#73A3CE
500
#4283BD
600
#356997
700
#2B5479
800
#21415E
900
#1C3245
950
#111F2C

Contrast Checker

Text on white

11.25:1

AA Pass AAA Pass

Text on black

1.87:1

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