#021939

#021939

Color Values

HEX

#021939

RGB

2, 25, 57

HSL

214.9, 93.2%, 11.6%

HSV

214.9, 96.5%, 22.4%

CMYK

96.5%, 56.1%, 0.0%, 77.6%

OKLCH

0.2173 0.0692 256.4

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#021939

#392202

Analogous

#023539

#070239

#021939

Triadic

#021939

#390219

#193902

Split Complementary

#021939

#390702

#353902

Tetradic

#021939

#390235

#392202

#023907

Color Blindness Simulation

Original

#021939

Protanopia

#0C0C31

Deuteranopia

#0B092F

Tritanopia

#032B2A

Achromatopsia

#161616

CSS Usage

background-color: #021939;
color: #021939;
border-color: #021939;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F1F6FD
100
#DFEBFB
200
#BAD6FD
300
#89B8FB
400
#4992F9
500
#096CF6
600
#0756C5
700
#06459E
800
#04367B
900
#082A59
950
#051A38

Contrast Checker

Text on white

17.49:1

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