#11151D

#11151D

Color Values

HEX

#11151D

RGB

17, 21, 29

HSL

220.0, 26.1%, 9.0%

HSV

220.0, 41.4%, 11.4%

CMYK

41.4%, 27.6%, 0.0%, 88.6%

OKLCH

0.1954 0.0174 264.0

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#11151D

#1D1911

Analogous

#111B1D

#13111D

#11151D

Triadic

#11151D

#1D1115

#151D11

Split Complementary

#11151D

#1D1311

#1B1D11

Tetradic

#11151D

#1D111B

#1D1911

#111D13

Color Blindness Simulation

Original

#11151D

Protanopia

#13131B

Deuteranopia

#12121B

Tritanopia

#111A19

Achromatopsia

#151515

CSS Usage

background-color: #11151D;
color: #11151D;
border-color: #11151D;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F6F7F9
100
#E9ECF1
200
#D2D8E5
300
#B2BCD2
400
#8898B9
500
#5E74A1
600
#4B5D81
700
#3C4B67
800
#2F3A50
900
#252D3C
950
#171C26

Contrast Checker

Text on white

18.28:1

AA Pass AAA Pass

Text on black

1.15:1

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