#1F383F

#1F383F

Color Values

HEX

#1F383F

RGB

31, 56, 63

HSL

193.1, 34.0%, 18.4%

HSV

193.1, 50.8%, 24.7%

CMYK

50.8%, 11.1%, 0.0%, 75.3%

OKLCH

0.3235 0.0333 217.6

Properties

Cool Dark Nearest: RAL 5001 Green Blue

Color Harmonies

Complementary

#1F383F

#3F261F

Analogous

#1F3F36

#1F283F

#1F383F

Triadic

#1F383F

#3F1F38

#383F1F

Split Complementary

#1F383F

#3F1F28

#3F361F

Tetradic

#1F383F

#361F3F

#3F261F

#283F1F

Color Blindness Simulation

Original

#1F383F

Protanopia

#2A2A3D

Deuteranopia

#28263D

Tritanopia

#203C3C

Achromatopsia

#333333

CSS Usage

background-color: #1F383F;
color: #1F383F;
border-color: #1F383F;
Nearest Tailwind: Cyan 950 #083344

Tailwind Shades

50
#F5F9FA
100
#E8F0F2
200
#CFE2E7
300
#ADCED7
400
#81B3C1
500
#5498AB
600
#437A89
700
#36616D
800
#2A4C55
900
#22393F
950
#152428

Contrast Checker

Text on white

12.38:1

AA Pass AAA Pass

Text on black

1.7:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026