#10171F

#10171F

Color Values

HEX

#10171F

RGB

16, 23, 31

HSL

212.0, 31.9%, 9.2%

HSV

212.0, 48.4%, 12.2%

CMYK

48.4%, 25.8%, 0.0%, 87.8%

OKLCH

0.2015 0.0193 252.1

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#10171F

#1F1810

Analogous

#101E1F

#10101F

#10171F

Triadic

#10171F

#1F1017

#171F10

Split Complementary

#10171F

#1F1010

#1E1F10

Tetradic

#10171F

#1F101E

#1F1810

#101F10

Color Blindness Simulation

Original

#10171F

Protanopia

#13131D

Deuteranopia

#13121D

Tritanopia

#101C1B

Achromatopsia

#161616

CSS Usage

background-color: #10171F;
color: #10171F;
border-color: #10171F;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F5F7F9
100
#E8EDF2
200
#D0DBE7
300
#AEC0D5
400
#839FBF
500
#577DA8
600
#456487
700
#38506C
800
#2B3E54
900
#23303E
950
#161E27

Contrast Checker

Text on white

18.04:1

AA Pass AAA Pass

Text on black

1.16:1

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