#2178D2

#2178D2

Color Values

HEX

#2178D2

RGB

33, 120, 210

HSL

210.5, 72.8%, 47.6%

HSV

210.5, 84.3%, 82.4%

CMYK

84.3%, 42.9%, 0.0%, 17.6%

OKLCH

0.5705 0.1596 253.4

Properties

Cool Light Nearest: dodgerblue 3

Color Harmonies

Complementary

#2178D2

#D27B21

Analogous

#21D0D2

#2221D2

#2178D2

Triadic

#2178D2

#D22178

#78D221

Split Complementary

#2178D2

#D22221

#D0D221

Tetradic

#2178D2

#D221D0

#D27B21

#21D222

Color Blindness Simulation

Original

#2178D2

Protanopia

#4747BC

Deuteranopia

#423BB7

Tritanopia

#25ABA7

Achromatopsia

#6C6C6C

CSS Usage

background-color: #2178D2;
color: #2178D2;
border-color: #2178D2;
Nearest Tailwind: Blue 500 #3B82F6

Tailwind Shades

50
#F3F7FC
100
#E2EDF8
200
#C1DBF5
300
#95C1EE
400
#5CA0E5
500
#237EDC
600
#1C65B0
700
#16518D
800
#113F6E
900
#113050
950
#0B1E33

Contrast Checker

Text on white

4.49:1

AA Fail AAA Fail

Text on black

4.68:1

AA Pass 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