#284081

#284081

Color Values

HEX

#284081

RGB

40, 64, 129

HSL

223.8, 52.7%, 33.1%

HSV

223.8, 69.0%, 50.6%

CMYK

69.0%, 50.4%, 0.0%, 49.4%

OKLCH

0.3898 0.1135 266.0

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#284081

#816928

Analogous

#286C81

#3C2881

#284081

Triadic

#284081

#812840

#408128

Split Complementary

#284081

#813C28

#6C8128

Tetradic

#284081

#81286C

#816928

#28813C

Color Blindness Simulation

Original

#284081

Protanopia

#323371

Deuteranopia

#312F6E

Tritanopia

#296562

Achromatopsia

#404040

CSS Usage

background-color: #284081;
color: #284081;
border-color: #284081;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F6FB
100
#E5E9F5
200
#C8D3EE
300
#A2B3E2
400
#6F8AD2
500
#3C61C3
600
#304D9C
700
#273E7D
800
#1E3061
900
#192647
950
#10182D

Contrast Checker

Text on white

9.81:1

AA Pass AAA Pass

Text on black

2.14:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026