#212F66

#212F66

Color Values

HEX

#212F66

RGB

33, 47, 102

HSL

227.8, 51.1%, 26.5%

HSV

227.8, 67.6%, 40.0%

CMYK

67.6%, 53.9%, 0.0%, 60.0%

OKLCH

0.3264 0.0981 269.5

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#212F66

#665821

Analogous

#215266

#362166

#212F66

Triadic

#212F66

#66212F

#2F6621

Split Complementary

#212F66

#663621

#526621

Tetradic

#212F66

#662152

#665821

#216636

Color Blindness Simulation

Original

#212F66

Protanopia

#272759

Deuteranopia

#262555

Tritanopia

#224E4C

Achromatopsia

#303030

CSS Usage

background-color: #212F66;
color: #212F66;
border-color: #212F66;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F4F5FB
100
#E5E9F5
200
#C9D0EE
300
#A3AFE1
400
#7084D1
500
#3E59C1
600
#32479A
700
#28397B
800
#1F2C60
900
#1A2347
950
#11162D

Contrast Checker

Text on white

12.63:1

AA Pass AAA Pass

Text on black

1.66:1

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