#1B71CC

#1B71CC

Color Values

HEX

#1B71CC

RGB

27, 113, 204

HSL

210.8, 76.6%, 45.3%

HSV

210.8, 86.8%, 80.0%

CMYK

86.8%, 44.6%, 0.0%, 20.0%

OKLCH

0.5497 0.1609 254.2

Properties

Cool Dark Nearest: Navy Blue

Color Harmonies

Complementary

#1B71CC

#CC761B

Analogous

#1BCACC

#1D1BCC

#1B71CC

Triadic

#1B71CC

#CC1B71

#71CC1B

Split Complementary

#1B71CC

#CC1D1B

#CACC1B

Tetradic

#1B71CC

#CC1BCA

#CC761B

#1BCC1D

Color Blindness Simulation

Original

#1B71CC

Protanopia

#4041B6

Deuteranopia

#3B35B1

Tritanopia

#1FA5A1

Achromatopsia

#656565

CSS Usage

background-color: #1B71CC;
color: #1B71CC;
border-color: #1B71CC;
Nearest Tailwind: Blue 500 #3B82F6

Tailwind Shades

50
#F2F7FC
100
#E2EDF9
200
#C0DBF7
300
#93C1F1
400
#589FE9
500
#1E7DE1
600
#1864B4
700
#135090
800
#0F3E71
900
#0F3052
950
#0A1E34

Contrast Checker

Text on white

4.91:1

AA Pass AAA Fail

Text on black

4.28:1

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