#12124C

#12124C

Color Values

HEX

#12124C

RGB

18, 18, 76

HSL

240.0, 61.7%, 18.4%

HSV

240.0, 76.3%, 29.8%

CMYK

76.3%, 76.3%, 0.0%, 70.2%

OKLCH

0.2304 0.1035 274.6

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#12124C

#4C4C12

Analogous

#122F4C

#2F124C

#12124C

Triadic

#12124C

#4C1212

#124C12

Split Complementary

#12124C

#4C2F12

#2F4C12

Tetradic

#12124C

#4C122F

#4C4C12

#124C2F

Color Blindness Simulation

Original

#12124C

Protanopia

#12123E

Deuteranopia

#12123B

Tritanopia

#123330

Achromatopsia

#161616

CSS Usage

background-color: #12124C;
color: #12124C;
border-color: #12124C;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F3F3FB
100
#E4E4F7
200
#C5C5F1
300
#9C9CE8
400
#6666DB
500
#3131CE
600
#2727A5
700
#1F1F84
800
#181867
900
#16164B
950
#0E0E30

Contrast Checker

Text on white

17.26:1

AA Pass AAA Pass

Text on black

1.22:1

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