#000523

#000523

Color Values

HEX

#000523

RGB

0, 5, 35

HSL

231.4, 100.0%, 6.9%

HSV

231.4, 100.0%, 13.7%

CMYK

100.0%, 85.7%, 0.0%, 86.3%

OKLCH

0.1365 0.0666 262.7

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#000523

#231E00

Analogous

#001723

#0D0023

#000523

Triadic

#000523

#230005

#052300

Split Complementary

#000523

#230D00

#172300

Tetradic

#000523

#230017

#231E00

#00230D

Color Blindness Simulation

Original

#000523

Protanopia

#02021C

Deuteranopia

#02021A

Tritanopia

#001615

Achromatopsia

#060606

CSS Usage

background-color: #000523;
color: #000523;
border-color: #000523;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F1F3FE
100
#DEE2FC
200
#B8C2FF
300
#8596FF
400
#425DFF
500
#0025FF
600
#001DCC
700
#0017A3
800
#001280
900
#05115C
950
#030B3A

Contrast Checker

Text on white

20.08:1

AA Pass AAA Pass

Text on black

1.05:1

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