#1B1BBC

#1B1BBC

Color Values

HEX

#1B1BBC

RGB

27, 27, 188

HSL

240.0, 74.9%, 42.2%

HSV

240.0, 85.6%, 73.7%

CMYK

85.6%, 85.6%, 0.0%, 26.3%

OKLCH

0.384 0.2324 268.2

Properties

Cool Dark Nearest: mediumblue

Color Harmonies

Complementary

#1B1BBC

#BCBC1B

Analogous

#1B6CBC

#6C1BBC

#1B1BBC

Triadic

#1B1BBC

#BC1B1B

#1BBC1B

Split Complementary

#1B1BBC

#BC6C1B

#6CBC1B

Tetradic

#1B1BBC

#BC1B6C

#BCBC1B

#1BBC6C

Color Blindness Simulation

Original

#1B1BBC

Protanopia

#1B1B95

Deuteranopia

#1B1B8C

Tritanopia

#1B7670

Achromatopsia

#272727

CSS Usage

background-color: #1B1BBC;
color: #1B1BBC;
border-color: #1B1BBC;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F2F2FC
100
#E2E2F9
200
#C1C1F6
300
#9494F0
400
#5A5AE7
500
#2020DF
600
#1A1AB2
700
#14148F
800
#10106F
900
#101051
950
#0A0A33

Contrast Checker

Text on white

10.88:1

AA Pass AAA Pass

Text on black

1.93:1

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