#211F4F

#211F4F

Color Values

HEX

#211F4F

RGB

33, 31, 79

HSL

242.5, 43.6%, 21.6%

HSV

242.5, 60.8%, 31.0%

CMYK

58.2%, 60.8%, 0.0%, 69.0%

OKLCH

0.272 0.0856 280.9

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#211F4F

#4D4F1F

Analogous

#1F354F

#391F4F

#211F4F

Triadic

#211F4F

#4F211F

#1F4F21

Split Complementary

#211F4F

#4F391F

#354F1F

Tetradic

#211F4F

#4F1F35

#4D4F1F

#1F4F39

Color Blindness Simulation

Original

#211F4F

Protanopia

#202043

Deuteranopia

#202041

Tritanopia

#213A38

Achromatopsia

#232323

CSS Usage

background-color: #211F4F;
color: #211F4F;
border-color: #211F4F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F5FA
100
#E7E7F4
200
#CDCCEB
300
#A9A7DC
400
#7B78CA
500
#4D48B7
600
#3D3A92
700
#312E75
800
#26245C
900
#1F1D43
950
#14132B

Contrast Checker

Text on white

15.29:1

AA Pass AAA Pass

Text on black

1.37:1

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