#101243

#101243

Color Values

HEX

#101243

RGB

16, 18, 67

HSL

237.6, 61.4%, 16.3%

HSV

237.6, 76.1%, 26.3%

CMYK

76.1%, 73.1%, 0.0%, 73.7%

OKLCH

0.219 0.0904 274.3

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#101243

#434110

Analogous

#102C43

#281043

#101243

Triadic

#101243

#431012

#124310

Split Complementary

#101243

#432810

#2C4310

Tetradic

#101243

#43102C

#434110

#104328

Color Blindness Simulation

Original

#101243

Protanopia

#111137

Deuteranopia

#111134

Tritanopia

#102E2C

Achromatopsia

#151515

CSS Usage

background-color: #101243;
color: #101243;
border-color: #101243;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F3F4FB
100
#E4E5F6
200
#C5C7F1
300
#9C9FE7
400
#676BDB
500
#3137CE
600
#272CA5
700
#1F2484
800
#191C67
900
#16184B
950
#0E0F30

Contrast Checker

Text on white

17.65:1

AA Pass AAA Pass

Text on black

1.19:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026