#1B1561

#1B1561

Color Values

HEX

#1B1561

RGB

27, 21, 97

HSL

244.7, 64.4%, 23.1%

HSV

244.7, 78.4%, 38.0%

CMYK

72.2%, 78.4%, 0.0%, 62.0%

OKLCH

0.2662 0.1272 276.8

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#1B1561

#5B6115

Analogous

#153561

#411561

#1B1561

Triadic

#1B1561

#611B15

#15611B

Split Complementary

#1B1561

#614115

#356115

Tetradic

#1B1561

#611535

#5B6115

#156141

Color Blindness Simulation

Original

#1B1561

Protanopia

#18184F

Deuteranopia

#19194A

Tritanopia

#1B403D

Achromatopsia

#1C1C1C

CSS Usage

background-color: #1B1561;
color: #1B1561;
border-color: #1B1561;
Nearest Tailwind: Violet 950 #2E1065

Tailwind Shades

50
#F4F3FC
100
#E5E3F7
200
#C8C4F2
300
#A19AE9
400
#6D64DD
500
#3A2DD2
600
#2F24A8
700
#251D86
800
#1D1769
900
#19144D
950
#100D30

Contrast Checker

Text on white

15.83:1

AA Pass AAA Pass

Text on black

1.33:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026