#303C40

#303C40

Color Values

HEX

#303C40

RGB

48, 60, 64

HSL

195.0, 14.3%, 22.0%

HSV

195.0, 25.0%, 25.1%

CMYK

25.0%, 6.2%, 0.0%, 74.9%

OKLCH

0.3469 0.0173 220.0

Properties

Cool Dark Nearest: RAL 6012 Black Green

Color Harmonies

Complementary

#303C40

#403430

Analogous

#30403C

#303440

#303C40

Triadic

#303C40

#40303C

#3C4030

Split Complementary

#303C40

#403034

#403C30

Tetradic

#303C40

#3C3040

#403430

#344030

Color Blindness Simulation

Original

#303C40

Protanopia

#35353F

Deuteranopia

#34343F

Tritanopia

#313E3E

Achromatopsia

#3A3A3A

CSS Usage

background-color: #303C40;
color: #303C40;
border-color: #303C40;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F6F8F8
100
#EBEEEF
200
#D6DEE0
300
#B9C6CB
400
#93A7AE
500
#6D8992
600
#576D75
700
#46575D
800
#374449
900
#2A3437
950
#1B2123

Contrast Checker

Text on white

11.38:1

AA Pass AAA Pass

Text on black

1.85:1

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