#403C7E

#403C7E

Color Values

HEX

#403C7E

RGB

64, 60, 126

HSL

243.6, 35.5%, 36.5%

HSV

243.6, 52.4%, 49.4%

CMYK

49.2%, 52.4%, 0.0%, 50.6%

OKLCH

0.3959 0.1081 283.0

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#403C7E

#7A7E3C

Analogous

#3C597E

#613C7E

#403C7E

Triadic

#403C7E

#7E403C

#3C7E40

Split Complementary

#403C7E

#7E613C

#597E3C

Tetradic

#403C7E

#7E3C59

#7A7E3C

#3C7E61

Color Blindness Simulation

Original

#403C7E

Protanopia

#3E3E6E

Deuteranopia

#3E3F6A

Tritanopia

#40615F

Achromatopsia

#424242

CSS Usage

background-color: #403C7E;
color: #403C7E;
border-color: #403C7E;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E8F3
200
#D0CFE8
300
#AFACD8
400
#837FC2
500
#5852AD
600
#46428A
700
#38356F
800
#2C2956
900
#232140
950
#161528

Contrast Checker

Text on white

9.7:1

AA Pass AAA Pass

Text on black

2.17:1

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