#211D2F

#211D2F

Color Values

HEX

#211D2F

RGB

33, 29, 47

HSL

253.3, 23.7%, 14.9%

HSV

253.3, 38.3%, 18.4%

CMYK

29.8%, 38.3%, 0.0%, 81.6%

OKLCH

0.2441 0.0342 293.9

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#211D2F

#2B2F1D

Analogous

#1D222F

#2A1D2F

#211D2F

Triadic

#211D2F

#2F211D

#1D2F21

Split Complementary

#211D2F

#2F2A1D

#222F1D

Tetradic

#211D2F

#2F1D22

#2B2F1D

#1D2F2A

Color Blindness Simulation

Original

#211D2F

Protanopia

#1F1F2B

Deuteranopia

#20202A

Tritanopia

#212726

Achromatopsia

#1F1F1F

CSS Usage

background-color: #211D2F;
color: #211D2F;
border-color: #211D2F;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F6F6F9
100
#EBEAF1
200
#D7D3E4
300
#BAB3D0
400
#948AB7
500
#6F619E
600
#594E7E
700
#473E65
800
#37314F
900
#2B263B
950
#1B1825

Contrast Checker

Text on white

16.39:1

AA Pass AAA Pass

Text on black

1.28:1

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