#231A18

#231A18

Color Values

HEX

#231A18

RGB

35, 26, 24

HSL

10.9, 18.6%, 11.6%

HSV

10.9, 31.4%, 13.7%

CMYK

0.0%, 25.7%, 31.4%, 86.3%

OKLCH

0.228 0.0149 32.7

Properties

Warm Dark Nearest: RAL 9011 Graphite Black

Color Harmonies

Complementary

#231A18

#182123

Analogous

#23181C

#232018

#231A18

Triadic

#231A18

#18231A

#1A1823

Split Complementary

#231A18

#182320

#181C23

Tetradic

#231A18

#1C2318

#182123

#201823

Color Blindness Simulation

Original

#231A18

Protanopia

#1F1F18

Deuteranopia

#202019

Tritanopia

#231919

Achromatopsia

#1C1C1C

CSS Usage

background-color: #231A18;
color: #231A18;
border-color: #231A18;
Nearest Tailwind: Stone 900 #1C1917

Tailwind Shades

50
#F9F7F6
100
#F0EBEA
200
#E2D7D5
300
#CDBBB6
400
#B2958F
500
#977068
600
#795A53
700
#614842
800
#4C3834
900
#392B28
950
#241B19

Contrast Checker

Text on white

17.04:1

AA Pass AAA Pass

Text on black

1.23:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026