#230303

#230303

Color Values

HEX

#230303

RGB

35, 3, 3

HSL

0.0, 84.2%, 7.5%

HSV

0.0, 91.4%, 13.7%

CMYK

0.0%, 91.4%, 91.4%, 86.3%

OKLCH

0.1694 0.0577 25.9

Properties

Warm Dark Nearest: RAL 3007 Black Red

Color Harmonies

Complementary

#230303

#032323

Analogous

#230313

#231303

#230303

Triadic

#230303

#032303

#030323

Split Complementary

#230303

#032313

#031323

Tetradic

#230303

#132303

#032323

#130323

Color Blindness Simulation

Original

#230303

Protanopia

#151503

Deuteranopia

#171903

Tritanopia

#210303

Achromatopsia

#0A0A0A

CSS Usage

background-color: #230303;
color: #230303;
border-color: #230303;
Nearest Tailwind: Stone 950 #0C0A09

Tailwind Shades

50
#FDF2F2
100
#FAE0E0
200
#F9BDBD
300
#F58E8E
400
#F05151
500
#EB1414
600
#BC1010
700
#960D0D
800
#750A0A
900
#550C0C
950
#360707

Contrast Checker

Text on white

19.34:1

AA Pass AAA Pass

Text on black

1.09:1

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