#28233F

#28233F

Color Values

HEX

#28233F

RGB

40, 35, 63

HSL

250.7, 28.6%, 19.2%

HSV

250.7, 44.4%, 24.7%

CMYK

36.5%, 44.4%, 0.0%, 75.3%

OKLCH

0.276 0.0511 290.9

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#28233F

#3A3F23

Analogous

#232C3F

#36233F

#28233F

Triadic

#28233F

#3F2823

#233F28

Split Complementary

#28233F

#3F3623

#2C3F23

Tetradic

#28233F

#3F232C

#3A3F23

#233F36

Color Blindness Simulation

Original

#28233F

Protanopia

#262638

Deuteranopia

#262637

Tritanopia

#283332

Achromatopsia

#262626

CSS Usage

background-color: #28233F;
color: #28233F;
border-color: #28233F;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F6F5F9
100
#EAE9F1
200
#D5D1E6
300
#B7B0D3
400
#8F86BC
500
#685BA4
600
#534983
700
#433A69
800
#342E52
900
#28243D
950
#1A1726

Contrast Checker

Text on white

14.97:1

AA Pass AAA Pass

Text on black

1.4:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

1월 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

1월 21, 2026
Tutorials

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

1월 18, 2026