#212758

#212758

Color Values

HEX

#212758

RGB

33, 39, 88

HSL

233.5, 45.5%, 23.7%

HSV

233.5, 62.5%, 34.5%

CMYK

62.5%, 55.7%, 0.0%, 65.5%

OKLCH

0.297 0.0876 274.5

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#212758

#585221

Analogous

#214258

#362158

#212758

Triadic

#212758

#582127

#275821

Split Complementary

#212758

#583621

#425821

Tetradic

#212758

#582142

#585221

#215836

Color Blindness Simulation

Original

#212758

Protanopia

#24244C

Deuteranopia

#232349

Tritanopia

#214341

Achromatopsia

#292929

CSS Usage

background-color: #212758;
color: #212758;
border-color: #212758;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F4F5FA
100
#E6E8F4
200
#CBCFEC
300
#A6ACDE
400
#767FCC
500
#4552BA
600
#384294
700
#2C3577
800
#23295D
900
#1D2144
950
#12152B

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

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026