#23303F

#23303F

Color Values

HEX

#23303F

RGB

35, 48, 63

HSL

212.1, 28.6%, 19.2%

HSV

212.1, 44.4%, 24.7%

CMYK

44.4%, 23.8%, 0.0%, 75.3%

OKLCH

0.3043 0.0325 252.4

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#23303F

#3F3223

Analogous

#233E3F

#24233F

#23303F

Triadic

#23303F

#3F2330

#303F23

Split Complementary

#23303F

#3F2423

#3E3F23

Tetradic

#23303F

#3F233E

#3F3223

#233F24

Color Blindness Simulation

Original

#23303F

Protanopia

#29293B

Deuteranopia

#28273A

Tritanopia

#243938

Achromatopsia

#2E2E2E

CSS Usage

background-color: #23303F;
color: #23303F;
border-color: #23303F;
Nearest Tailwind: Gray 800 #1F2937

Tailwind Shades

50
#F5F7F9
100
#E9EDF1
200
#D1DBE6
300
#B0C1D3
400
#869FBC
500
#5B7DA4
600
#496483
700
#3A5069
800
#2E3E52
900
#24303D
950
#171E26

Contrast Checker

Text on white

13.41:1

AA Pass AAA Pass

Text on black

1.57:1

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