#040CB3

#040CB3

Color Values

HEX

#040CB3

RGB

4, 12, 179

HSL

237.3, 95.6%, 35.9%

HSV

237.3, 97.8%, 70.2%

CMYK

97.8%, 93.3%, 0.0%, 29.8%

OKLCH

0.354 0.235 264.7

Properties

Cool Dark Nearest: mediumblue

Color Harmonies

Complementary

#040CB3

#B3AB04

Analogous

#0463B3

#5404B3

#040CB3

Triadic

#040CB3

#B3040C

#0CB304

Split Complementary

#040CB3

#B35404

#63B304

Tetradic

#040CB3

#B30463

#B3AB04

#04B354

Color Blindness Simulation

Original

#040CB3

Protanopia

#07088B

Deuteranopia

#070681

Tritanopia

#046B64

Achromatopsia

#161616

CSS Usage

background-color: #040CB3;
color: #040CB3;
border-color: #040CB3;
Nearest Tailwind: Violet 800 #5B21B6

Tailwind Shades

50
#F1F2FE
100
#DFE0FC
200
#B9BCFD
300
#878DFC
400
#464FFB
500
#0611F9
600
#040DC8
700
#040BA0
800
#03087D
900
#070B5A
950
#040739

Contrast Checker

Text on white

12.29:1

AA Pass AAA Pass

Text on black

1.71:1

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