#18101B

#18101B

Color Values

HEX

#18101B

RGB

24, 16, 27

HSL

283.6, 25.6%, 8.4%

HSV

283.6, 40.7%, 10.6%

CMYK

11.1%, 40.7%, 0.0%, 89.4%

OKLCH

0.1888 0.025 316.6

Properties

Cool Dark Nearest: RAL 5011 Steel Blue

Color Harmonies

Complementary

#18101B

#131B10

Analogous

#12101B

#1B1018

#18101B

Triadic

#18101B

#1B1810

#101B18

Split Complementary

#18101B

#181B10

#101B12

Tetradic

#18101B

#1B1210

#131B10

#10181B

Color Blindness Simulation

Original

#18101B

Protanopia

#151418

Deuteranopia

#151618

Tritanopia

#181616

Achromatopsia

#121212

CSS Usage

background-color: #18101B;
color: #18101B;
border-color: #18101B;
Nearest Tailwind: Slate 950 #020617

Tailwind Shades

50
#F8F6F9
100
#EFE9F1
200
#DFD2E4
300
#C9B2D1
400
#AC88B9
500
#8E5FA0
600
#724C80
700
#5B3D66
800
#472F50
900
#36253C
950
#221826

Contrast Checker

Text on white

18.6:1

AA Pass AAA Pass

Text on black

1.13:1

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