#210103

#210103

Color Values

HEX

#210103

RGB

33, 1, 3

HSL

356.2, 94.1%, 6.7%

HSV

356.2, 97.0%, 12.9%

CMYK

0.0%, 97.0%, 90.9%, 87.1%

OKLCH

0.1595 0.0601 21.6

Properties

Warm Dark Nearest: RAL 5011 Steel Blue

Color Harmonies

Complementary

#210103

#01211F

Analogous

#210113

#210F01

#210103

Triadic

#210103

#032101

#010321

Split Complementary

#210103

#01210F

#011321

Tetradic

#210103

#132101

#01211F

#0F0121

Color Blindness Simulation

Original

#210103

Protanopia

#131303

Deuteranopia

#151702

Tritanopia

#1F0202

Achromatopsia

#080808

CSS Usage

background-color: #210103;
color: #210103;
border-color: #210103;
Nearest Tailwind: Stone 950 #0C0A09

Tailwind Shades

50
#FDF1F2
100
#FBDFE1
200
#FDBABE
300
#FB8890
400
#F94853
500
#F70817
600
#C60612
700
#9E050F
800
#7C040B
900
#59070D
950
#390508

Contrast Checker

Text on white

19.62:1

AA Pass AAA Pass

Text on black

1.07:1

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