#283E7C

#283E7C

Color Values

HEX

#283E7C

RGB

40, 62, 124

HSL

224.3, 51.2%, 32.2%

HSV

224.3, 67.7%, 48.6%

CMYK

67.7%, 50.0%, 0.0%, 51.4%

OKLCH

0.3815 0.1087 266.6

Properties

Cool Dark Nearest: RAL 5017 Traffic Blue

Color Harmonies

Complementary

#283E7C

#7C6628

Analogous

#28687C

#3C287C

#283E7C

Triadic

#283E7C

#7C283E

#3E7C28

Split Complementary

#283E7C

#7C3C28

#687C28

Tetradic

#283E7C

#7C2868

#7C6628

#287C3C

Color Blindness Simulation

Original

#283E7C

Protanopia

#32326D

Deuteranopia

#302F69

Tritanopia

#29615F

Achromatopsia

#3E3E3E

CSS Usage

background-color: #283E7C;
color: #283E7C;
border-color: #283E7C;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F6FB
100
#E5E9F5
200
#C9D3EE
300
#A2B3E1
400
#708AD1
500
#3E60C1
600
#324D9A
700
#283E7B
800
#1F3060
900
#1A2647
950
#10182D

Contrast Checker

Text on white

10.14:1

AA Pass AAA Pass

Text on black

2.07:1

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