#283C5D

#283C5D

Color Values

HEX

#283C5D

RGB

40, 60, 93

HSL

217.4, 39.8%, 26.1%

HSV

217.4, 57.0%, 36.5%

CMYK

57.0%, 35.5%, 0.0%, 63.5%

OKLCH

0.3558 0.0632 260.0

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#283C5D

#5D4928

Analogous

#28575D

#2F285D

#283C5D

Triadic

#283C5D

#5D283C

#3C5D28

Split Complementary

#283C5D

#5D2F28

#575D28

Tetradic

#283C5D

#5D2857

#5D4928

#285D2F

Color Blindness Simulation

Original

#283C5D

Protanopia

#313155

Deuteranopia

#302E53

Tritanopia

#294F4D

Achromatopsia

#3A3A3A

CSS Usage

background-color: #283C5D;
color: #283C5D;
border-color: #283C5D;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F5F7FA
100
#E7ECF3
200
#CDD8EA
300
#A9BCDA
400
#7B97C6
500
#4D73B2
600
#3D5C8F
700
#314A72
800
#263959
900
#1F2C42
950
#141C2A

Contrast Checker

Text on white

11.08:1

AA Pass AAA Pass

Text on black

1.89:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026