#233B81

#233B81

Color Values

HEX

#233B81

RGB

35, 59, 129

HSL

224.7, 57.3%, 32.2%

HSV

224.7, 72.9%, 50.6%

CMYK

72.9%, 54.3%, 0.0%, 49.4%

OKLCH

0.3761 0.1219 266.3

Properties

Cool Dark Nearest: NCS S 3060-B Dark Blue

Color Harmonies

Complementary

#233B81

#816923

Analogous

#236A81

#3A2381

#233B81

Triadic

#233B81

#81233B

#3B8123

Split Complementary

#233B81

#813A23

#6A8123

Tetradic

#233B81

#81236A

#816923

#23813A

Color Blindness Simulation

Original

#233B81

Protanopia

#2D2E70

Deuteranopia

#2C2A6C

Tritanopia

#246360

Achromatopsia

#3B3B3B

CSS Usage

background-color: #233B81;
color: #233B81;
border-color: #233B81;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F4F6FB
100
#E4E9F6
200
#C7D1F0
300
#9FB1E5
400
#6B86D7
500
#365CC9
600
#2C49A0
700
#233B80
800
#1B2E64
900
#172449
950
#0F172E

Contrast Checker

Text on white

10.43:1

AA Pass AAA Pass

Text on black

2.01:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026