#1F273C

#1F273C

Color Values

HEX

#1F273C

RGB

31, 39, 60

HSL

223.4, 31.9%, 17.8%

HSV

223.4, 48.3%, 23.5%

CMYK

48.3%, 35.0%, 0.0%, 76.5%

OKLCH

0.2756 0.0408 267.7

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#1F273C

#3C341F

Analogous

#1F353C

#251F3C

#1F273C

Triadic

#1F273C

#3C1F27

#273C1F

Split Complementary

#1F273C

#3C251F

#353C1F

Tetradic

#1F273C

#3C1F35

#3C341F

#1F3C25

Color Blindness Simulation

Original

#1F273C

Protanopia

#222337

Deuteranopia

#222136

Tritanopia

#1F3332

Achromatopsia

#272727

CSS Usage

background-color: #1F273C;
color: #1F273C;
border-color: #1F273C;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F6F9
100
#E8EBF2
200
#D0D6E7
300
#AEB9D5
400
#8393BF
500
#576DA8
600
#455787
700
#38466C
800
#2B3754
900
#232A3E
950
#161B27

Contrast Checker

Text on white

14.85:1

AA Pass AAA Pass

Text on black

1.41:1

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