#212B45

#212B45

Color Values

HEX

#212B45

RGB

33, 43, 69

HSL

223.3, 35.3%, 20.0%

HSV

223.3, 52.2%, 27.1%

CMYK

52.2%, 37.7%, 0.0%, 72.9%

OKLCH

0.2931 0.0497 267.3

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#212B45

#453B21

Analogous

#213D45

#292145

#212B45

Triadic

#212B45

#45212B

#2B4521

Split Complementary

#212B45

#452921

#3D4521

Tetradic

#212B45

#45213D

#453B21

#214529

Color Blindness Simulation

Original

#212B45

Protanopia

#25253F

Deuteranopia

#25243D

Tritanopia

#223A39

Achromatopsia

#2B2B2B

CSS Usage

background-color: #212B45;
color: #212B45;
border-color: #212B45;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F6FA
100
#E8EBF3
200
#CFD6E8
300
#ACB8D7
400
#7F92C2
500
#526CAD
600
#42568A
700
#35456E
800
#293656
900
#212A40
950
#151A28

Contrast Checker

Text on white

14.04:1

AA Pass AAA Pass

Text on black

1.5:1

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