#191C3C

#191C3C

Color Values

HEX

#191C3C

RGB

25, 28, 60

HSL

234.9, 41.2%, 16.7%

HSV

234.9, 58.3%, 23.5%

CMYK

58.3%, 53.3%, 0.0%, 76.5%

OKLCH

0.2425 0.0605 276.9

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#191C3C

#3C3919

Analogous

#192E3C

#28193C

#191C3C

Triadic

#191C3C

#3C191C

#1C3C19

Split Complementary

#191C3C

#3C2819

#2E3C19

Tetradic

#191C3C

#3C192E

#3C3919

#193C28

Color Blindness Simulation

Original

#191C3C

Protanopia

#1A1A34

Deuteranopia

#1A1A32

Tritanopia

#192E2D

Achromatopsia

#1E1E1E

CSS Usage

background-color: #191C3C;
color: #191C3C;
border-color: #191C3C;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F5F5FA
100
#E7E8F3
200
#CDCFEA
300
#A9ADDB
400
#7A80C8
500
#4B54B4
600
#3C4390
700
#303673
800
#252A5A
900
#1E2242
950
#13152A

Contrast Checker

Text on white

16.5:1

AA Pass AAA Pass

Text on black

1.27:1

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