#12112B

#12112B

Color Values

HEX

#12112B

RGB

18, 17, 43

HSL

242,3, 43,3%, 11,8%

HSV

242,3, 60,5%, 16,9%

CMYK

58,1%, 60,5%, 0,0%, 83,1%

OKLCH

0,1954 0,051 282,3

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#12112B

#2A2B11

Analogous

#111D2B

#1F112B

#12112B

Triadic

#12112B

#2B1211

#112B12

Split Complementary

#12112B

#2B1F11

#1D2B11

Tetradic

#12112B

#2B111D

#2A2B11

#112B1F

Color Blindness Simulation

Original

#12112B

Protanopia

#121225

Deuteranopia

#121223

Tritanopia

#12201F

Achromatopsia

#131313

CSS Usage

background-color: #12112B;
color: #12112B;
border-color: #12112B;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F5F5FA
100
#E7E7F4
200
#CDCCEB
300
#A9A7DC
400
#7B78CA
500
#4D48B7
600
#3D3A92
700
#312E75
800
#26245B
900
#1F1E43
950
#14132B

Contrast Checker

Text on white

18,41:1

AA Pass AAA Pass

Text on black

1,14:1

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