#1D2138

#1D2138

Color Values

HEX

#1D2138

RGB

29, 33, 56

HSL

231.1, 31.8%, 16.7%

HSV

231.1, 48.2%, 22.0%

CMYK

48.2%, 41.1%, 0.0%, 78.0%

OKLCH

0.2558 0.0438 275.4

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#1D2138

#38341D

Analogous

#1D2F38

#271D38

#1D2138

Triadic

#1D2138

#381D21

#21381D

Split Complementary

#1D2138

#38271D

#2F381D

Tetradic

#1D2138

#381D2F

#38341D

#1D3827

Color Blindness Simulation

Original

#1D2138

Protanopia

#1F1F32

Deuteranopia

#1E1E31

Tritanopia

#1D2E2D

Achromatopsia

#222222

CSS Usage

background-color: #1D2138;
color: #1D2138;
border-color: #1D2138;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F6F9
100
#E8EAF2
200
#D0D3E7
300
#AEB4D5
400
#838CBF
500
#5763A8
600
#464F86
700
#383F6C
800
#2B3154
900
#23273E
950
#161827

Contrast Checker

Text on white

15.83:1

AA Pass AAA Pass

Text on black

1.33:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026