#212940

#212940

Color Values

HEX

#212940

RGB

33, 41, 64

HSL

224.5, 32.0%, 19.0%

HSV

224.5, 48.4%, 25.1%

CMYK

48.4%, 35.9%, 0.0%, 74.9%

OKLCH

0.2848 0.044 268.9

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#212940

#403821

Analogous

#213840

#282140

#212940

Triadic

#212940

#402129

#294021

Split Complementary

#212940

#402821

#384021

Tetradic

#212940

#402138

#403821

#214028

Color Blindness Simulation

Original

#212940

Protanopia

#24253A

Deuteranopia

#242339

Tritanopia

#213635

Achromatopsia

#292929

CSS Usage

background-color: #212940;
color: #212940;
border-color: #212940;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F6F9
100
#E8EBF2
200
#D0D6E7
300
#AEB8D5
400
#8292BF
500
#576CA8
600
#455687
700
#37456C
800
#2B3654
900
#222A3E
950
#161A27

Contrast Checker

Text on white

14.42:1

AA Pass AAA Pass

Text on black

1.46:1

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