#211F36

#211F36

Color Values

HEX

#211F36

RGB

33, 31, 54

HSL

245.2, 27.1%, 16.7%

HSV

245.2, 42.6%, 21.2%

CMYK

38.9%, 42.6%, 0.0%, 78.8%

OKLCH

0.2533 0.0429 286.9

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#211F36

#34361F

Analogous

#1F2936

#2D1F36

#211F36

Triadic

#211F36

#36211F

#1F3621

Split Complementary

#211F36

#362D1F

#29361F

Tetradic

#211F36

#361F29

#34361F

#1F362D

Color Blindness Simulation

Original

#211F36

Protanopia

#202030

Deuteranopia

#20202F

Tritanopia

#212C2B

Achromatopsia

#212121

CSS Usage

background-color: #211F36;
color: #211F36;
border-color: #211F36;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F6F6F9
100
#EAE9F1
200
#D3D2E5
300
#B4B1D2
400
#8C87BA
500
#635DA2
600
#4F4A82
700
#3F3B68
800
#312E51
900
#27253C
950
#181726

Contrast Checker

Text on white

15.98:1

AA Pass AAA Pass

Text on black

1.31:1

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