#403D89

#403D89

Color Values

HEX

#403D89

RGB

64, 61, 137

HSL

242,4, 38,4%, 38,8%

HSV

242,4, 55,5%, 53,7%

CMYK

53,3%, 55,5%, 0,0%, 46,3%

OKLCH

0,406 0,123 281,2

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#403D89

#86893D

Analogous

#3D6089

#663D89

#403D89

Triadic

#403D89

#89403D

#3D8940

Split Complementary

#403D89

#89663D

#60893D

Tetradic

#403D89

#893D60

#86893D

#3D8966

Color Blindness Simulation

Original

#403D89

Protanopia

#3F3F77

Deuteranopia

#3F3F72

Tritanopia

#406865

Achromatopsia

#434343

CSS Usage

background-color: #403D89;
color: #403D89;
border-color: #403D89;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#CFCEE9
300
#ACAAD9
400
#7F7CC5
500
#524FB0
600
#423F8D
700
#353271
800
#292758
900
#212041
950
#151429

Contrast Checker

Text on white

9,35:1

AA Pass AAA Pass

Text on black

2,25:1

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