#403FB5

#403FB5

Color Values

HEX

#403FB5

RGB

64, 63, 181

HSL

240.5, 48.4%, 47.8%

HSV

240.5, 65.2%, 71.0%

CMYK

64.6%, 65.2%, 0.0%, 29.0%

OKLCH

0.4459 0.1812 276.5

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#403FB5

#B4B53F

Analogous

#3F79B5

#7B3FB5

#403FB5

Triadic

#403FB5

#B5403F

#3FB540

Split Complementary

#403FB5

#B57B3F

#79B53F

Tetradic

#403FB5

#B53F79

#B4B53F

#3FB57B

Color Blindness Simulation

Original

#403FB5

Protanopia

#404098

Deuteranopia

#404092

Tritanopia

#40827D

Achromatopsia

#484848

CSS Usage

background-color: #403FB5;
color: #403FB5;
border-color: #403FB5;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FA
100
#E6E6F4
200
#CACAED
300
#A5A4DF
400
#7473CE
500
#4342BD
600
#353597
700
#2B2A79
800
#21215F
900
#1C1B46
950
#11112C

Contrast Checker

Text on white

8.09:1

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