#1B1D52

#1B1D52

Color Values

HEX

#1B1D52

RGB

27, 29, 82

HSL

237.8, 50.5%, 21.4%

HSV

237.8, 67.1%, 32.2%

CMYK

67.1%, 64.6%, 0.0%, 67.8%

OKLCH

0.2654 0.0948 276.2

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#1B1D52

#52501B

Analogous

#1B3952

#351B52

#1B1D52

Triadic

#1B1D52

#521B1D

#1D521B

Split Complementary

#1B1D52

#52351B

#39521B

Tetradic

#1B1D52

#521B39

#52501B

#1B5235

Color Blindness Simulation

Original

#1B1D52

Protanopia

#1C1C45

Deuteranopia

#1C1C42

Tritanopia

#1B3B39

Achromatopsia

#202020

CSS Usage

background-color: #1B1D52;
color: #1B1D52;
border-color: #1B1D52;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F4FB
100
#E5E6F5
200
#C9CBED
300
#A3A5E1
400
#7174D0
500
#3F44C0
600
#32369A
700
#282B7B
800
#202260
900
#1A1C46
950
#11122D

Contrast Checker

Text on white

15.62:1

AA Pass AAA Pass

Text on black

1.34:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026