#28387C

#28387C

Color Values

HEX

#28387C

RGB

40, 56, 124

HSL

228.6, 51.2%, 32.2%

HSV

228.6, 67.7%, 48.6%

CMYK

67.7%, 54.8%, 0.0%, 51.4%

OKLCH

0.3683 0.1169 269.8

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#28387C

#7C6C28

Analogous

#28627C

#42287C

#28387C

Triadic

#28387C

#7C2838

#387C28

Split Complementary

#28387C

#7C4228

#627C28

Tetradic

#28387C

#7C2862

#7C6C28

#287C42

Color Blindness Simulation

Original

#28387C

Protanopia

#2F2F6C

Deuteranopia

#2E2D68

Tritanopia

#295F5C

Achromatopsia

#3A3A3A

CSS Usage

background-color: #28387C;
color: #28387C;
border-color: #28387C;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F5FB
100
#E5E8F5
200
#C9D0EE
300
#A2AEE1
400
#7083D1
500
#3E57C1
600
#32469A
700
#28387B
800
#1F2C60
900
#1A2347
950
#10162D

Contrast Checker

Text on white

10.79:1

AA Pass AAA Pass

Text on black

1.95:1

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