#28387B

#28387B

Color Values

HEX

#28387B

RGB

40, 56, 123

HSL

228.4, 50.9%, 32.0%

HSV

228.4, 67.5%, 48.2%

CMYK

67.5%, 54.5%, 0.0%, 51.8%

OKLCH

0.3675 0.1154 269.8

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#28387B

#7B6B28

Analogous

#28627B

#42287B

#28387B

Triadic

#28387B

#7B2838

#387B28

Split Complementary

#28387B

#7B4228

#627B28

Tetradic

#28387B

#7B2862

#7B6B28

#287B42

Color Blindness Simulation

Original

#28387B

Protanopia

#2F2F6B

Deuteranopia

#2E2D67

Tritanopia

#295E5B

Achromatopsia

#393939

CSS Usage

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

Tailwind Shades

50
#F4F5FB
100
#E5E8F5
200
#C9D0ED
300
#A3AFE1
400
#7183D1
500
#3F58C0
600
#32469A
700
#28387B
800
#1F2C60
900
#1A2347
950
#11162D

Contrast Checker

Text on white

10.81:1

AA Pass AAA Pass

Text on black

1.94:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026