#231827

#231827

Color Values

HEX

#231827

RGB

35, 24, 39

HSL

284.0, 23.8%, 12.4%

HSV

284.0, 38.5%, 15.3%

CMYK

10.3%, 38.5%, 0.0%, 84.7%

OKLCH

0.2298 0.0325 316.8

Properties

Cool Dark Nearest: RAL 5011 Steel Blue

Color Harmonies

Complementary

#231827

#1C2718

Analogous

#1C1827

#271824

#231827

Triadic

#231827

#272318

#182723

Split Complementary

#231827

#242718

#18271C

Tetradic

#231827

#271C18

#1C2718

#182427

Color Blindness Simulation

Original

#231827

Protanopia

#1E1E23

Deuteranopia

#1F2022

Tritanopia

#222120

Achromatopsia

#1B1B1B

CSS Usage

background-color: #231827;
color: #231827;
border-color: #231827;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F8F6F9
100
#EFEAF1
200
#DFD3E4
300
#C9B3D0
400
#AB8AB7
500
#8E619E
600
#714E7E
700
#5B3E65
800
#47314F
900
#35263B
950
#221825

Contrast Checker

Text on white

17.05:1

AA Pass AAA Pass

Text on black

1.23:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026