#18151F

#18151F

Color Values

HEX

#18151F

RGB

24, 21, 31

HSL

258.0, 19.2%, 10.2%

HSV

258.0, 32.3%, 12.2%

CMYK

22.6%, 32.3%, 0.0%, 87.8%

OKLCH

0.2041 0.0201 298.4

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#18151F

#1C1F15

Analogous

#15171F

#1D151F

#18151F

Triadic

#18151F

#1F1815

#151F18

Split Complementary

#18151F

#1F1D15

#171F15

Tetradic

#18151F

#1F1517

#1C1F15

#151F1D

Color Blindness Simulation

Original

#18151F

Protanopia

#17171D

Deuteranopia

#17171C

Tritanopia

#181B1A

Achromatopsia

#161616

CSS Usage

background-color: #18151F;
color: #18151F;
border-color: #18151F;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D9D4E2
300
#BDB6CE
400
#998FB3
500
#766798
600
#5E527A
700
#4B4261
800
#3B344C
900
#2D2839
950
#1C1924

Contrast Checker

Text on white

18.01:1

AA Pass AAA Pass

Text on black

1.17:1

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