#2B1637

#2B1637

Color Values

HEX

#2B1637

RGB

43, 22, 55

HSL

278.2, 42.9%, 15.1%

HSV

278.2, 60.0%, 21.6%

CMYK

21.8%, 60.0%, 0.0%, 78.4%

OKLCH

0.2464 0.0654 311.9

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#2B1637

#223716

Analogous

#1B1637

#371633

#2B1637

Triadic

#2B1637

#372B16

#16372B

Split Complementary

#2B1637

#333716

#16371B

Tetradic

#2B1637

#371B16

#223716

#163337

Color Blindness Simulation

Original

#2B1637

Protanopia

#22222F

Deuteranopia

#23252D

Tritanopia

#2A2927

Achromatopsia

#1D1D1D

CSS Usage

background-color: #2B1637;
color: #2B1637;
border-color: #2B1637;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F5FA
100
#EFE7F4
200
#DFCCEB
300
#C9A8DC
400
#AC78C9
500
#8E49B6
600
#723A92
700
#5B2F75
800
#47245B
900
#361E43
950
#22132A

Contrast Checker

Text on white

16.5:1

AA Pass AAA Pass

Text on black

1.27:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026