#03071C

#03071C

Color Values

HEX

#03071C

RGB

3, 7, 28

HSL

230.4, 80.6%, 6.1%

HSV

230.4, 89.3%, 11.0%

CMYK

89.3%, 75.0%, 0.0%, 89.0%

OKLCH

0.1392 0.047 267.7

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#03071C

#1C1803

Analogous

#03141C

#0C031C

#03071C

Triadic

#03071C

#1C0307

#071C03

Split Complementary

#03071C

#1C0C03

#141C03

Tetradic

#03071C

#1C0314

#1C1803

#031C0C

Color Blindness Simulation

Original

#03071C

Protanopia

#050517

Deuteranopia

#040416

Tritanopia

#031312

Achromatopsia

#080808

CSS Usage

background-color: #03071C;
color: #03071C;
border-color: #03071C;
Nearest Tailwind: Slate 950 #020617

Tailwind Shades

50
#F2F4FD
100
#E1E5F9
200
#BFC8F8
300
#90A0F3
400
#556DED
500
#193AE6
600
#142EB8
700
#102593
800
#0C1D73
900
#0D1954
950
#081035

Contrast Checker

Text on white

19.98:1

AA Pass AAA Pass

Text on black

1.05:1

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