#131234

#131234

Color Values

HEX

#131234

RGB

19, 18, 52

HSL

241.8, 48.6%, 13.7%

HSV

241.8, 65.4%, 20.4%

CMYK

63.5%, 65.4%, 0.0%, 79.6%

OKLCH

0.2066 0.065 280.4

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#131234

#333412

Analogous

#122234

#241234

#131234

Triadic

#131234

#341312

#123413

Split Complementary

#131234

#342412

#223412

Tetradic

#131234

#341222

#333412

#123424

Color Blindness Simulation

Original

#131234

Protanopia

#13132C

Deuteranopia

#13132A

Tritanopia

#132524

Achromatopsia

#151515

CSS Usage

background-color: #131234;
color: #131234;
border-color: #131234;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FB
100
#E6E6F5
200
#CBCAED
300
#A6A4E0
400
#7673CF
500
#4542BD
600
#373498
700
#2C2A79
800
#23215F
900
#1D1B46
950
#12112C

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

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