#131827

#131827

Color Values

HEX

#131827

RGB

19, 24, 39

HSL

225.0, 34.5%, 11.4%

HSV

225.0, 51.3%, 15.3%

CMYK

51.3%, 38.5%, 0.0%, 84.7%

OKLCH

0.2118 0.0308 269.5

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#131827

#272213

Analogous

#132227

#181327

#131827

Triadic

#131827

#271318

#182713

Split Complementary

#131827

#271813

#222713

Tetradic

#131827

#271322

#272213

#132718

Color Blindness Simulation

Original

#131827

Protanopia

#151523

Deuteranopia

#151422

Tritanopia

#132120

Achromatopsia

#181818

CSS Usage

background-color: #131827;
color: #131827;
border-color: #131827;
Nearest Tailwind: Gray 900 #111827

Tailwind Shades

50
#F5F6FA
100
#E8EBF2
200
#CFD5E8
300
#ADB7D7
400
#8090C1
500
#546AAB
600
#435489
700
#35446E
800
#2A3556
900
#21293F
950
#151A28

Contrast Checker

Text on white

17.68:1

AA Pass AAA Pass

Text on black

1.19:1

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