#403EB8

#403EB8

Color Values

HEX

#403EB8

RGB

64, 62, 184

HSL

241,0, 49,6%, 48,2%

HSV

241,0, 66,3%, 72,2%

CMYK

65,2%, 66,3%, 0,0%, 27,8%

OKLCH

0,4469 0,1863 276,5

Properties

Cool Dark Nearest: slateblue 3

Color Harmonies

Complementary

#403EB8

#B6B83E

Analogous

#3E79B8

#7D3EB8

#403EB8

Triadic

#403EB8

#B8403E

#3EB840

Split Complementary

#403EB8

#B87D3E

#79B83E

Tetradic

#403EB8

#B83E79

#B6B83E

#3EB87D

Color Blindness Simulation

Original

#403EB8

Protanopia

#3F3F9B

Deuteranopia

#3F3F93

Tritanopia

#40837E

Achromatopsia

#474747

CSS Usage

background-color: #403EB8;
color: #403EB8;
border-color: #403EB8;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FB
100
#E6E6F5
200
#CACAED
300
#A4A3E0
400
#7372CF
500
#4240BF
600
#353399
700
#2A297A
800
#21205F
900
#1C1B46
950
#11112C

Contrast Checker

Text on white

8,08:1

AA Pass AAA Pass

Text on black

2,6:1

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