#211428

#211428

Color Values

HEX

#211428

RGB

33, 20, 40

HSL

279.0, 33.3%, 11.8%

HSV

279.0, 50.0%, 15.7%

CMYK

17.5%, 50.0%, 0.0%, 84.3%

OKLCH

0.2184 0.0421 313.1

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#211428

#1B2814

Analogous

#171428

#281425

#211428

Triadic

#211428

#282114

#142821

Split Complementary

#211428

#252814

#142817

Tetradic

#211428

#281714

#1B2814

#142528

Color Blindness Simulation

Original

#211428

Protanopia

#1B1B23

Deuteranopia

#1C1D22

Tritanopia

#201F1E

Achromatopsia

#181818

CSS Usage

background-color: #211428;
color: #211428;
border-color: #211428;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F8F5FA
100
#EFE8F2
200
#DFCFE7
300
#C8ADD6
400
#AA81C0
500
#8C55AA
600
#704488
700
#5A366D
800
#462B55
900
#35223F
950
#211528

Contrast Checker

Text on white

17.57:1

AA Pass AAA Pass

Text on black

1.2:1

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