#403B8E

#403B8E

Color Values

HEX

#403B8E

RGB

64, 59, 142

HSL

243.6, 41.3%, 39.4%

HSV

243.6, 58.5%, 55.7%

CMYK

54.9%, 58.5%, 0.0%, 44.3%

OKLCH

0.406 0.1331 281.4

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#403B8E

#898E3B

Analogous

#3B5F8E

#693B8E

#403B8E

Triadic

#403B8E

#8E403B

#3B8E40

Split Complementary

#403B8E

#8E693B

#5F8E3B

Tetradic

#403B8E

#8E3B5F

#898E3B

#3B8E69

Color Blindness Simulation

Original

#403B8E

Protanopia

#3E3E7A

Deuteranopia

#3E3E75

Tritanopia

#406A67

Achromatopsia

#424242

CSS Usage

background-color: #403B8E;
color: #403B8E;
border-color: #403B8E;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#CECDEA
300
#ACA9DB
400
#7E7AC8
500
#514BB4
600
#413C90
700
#343073
800
#29255A
900
#211E42
950
#15132A

Contrast Checker

Text on white

9.4:1

AA Pass AAA Pass

Text on black

2.23:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026