#283348

#283348

Color Values

HEX

#283348

RGB

40, 51, 72

HSL

219.4, 28.6%, 22.0%

HSV

219.4, 44.4%, 28.2%

CMYK

44.4%, 29.2%, 0.0%, 71.8%

OKLCH

0.3208 0.0406 262.9

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#283348

#483D28

Analogous

#284348

#2D2848

#283348

Triadic

#283348

#482833

#334828

Split Complementary

#283348

#482D28

#434828

Tetradic

#283348

#482843

#483D28

#28482D

Color Blindness Simulation

Original

#283348

Protanopia

#2D2D43

Deuteranopia

#2C2B42

Tritanopia

#293F3E

Achromatopsia

#323232

CSS Usage

background-color: #283348;
color: #283348;
border-color: #283348;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F7F9
100
#E9ECF1
200
#D1D8E6
300
#B0BCD3
400
#8698BC
500
#5B74A4
600
#495D83
700
#3A4A69
800
#2E3A52
900
#242D3D
950
#171C26

Contrast Checker

Text on white

12.67:1

AA Pass AAA Pass

Text on black

1.66:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026