#40284F

#40284F

Color Values

HEX

#40284F

RGB

64, 40, 79

HSL

276.9, 32.8%, 23.3%

HSV

276.9, 49.4%, 31.0%

CMYK

19.0%, 49.4%, 0.0%, 69.0%

OKLCH

0.3246 0.0728 311.3

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#40284F

#374F28

Analogous

#2C284F

#4F284A

#40284F

Triadic

#40284F

#4F4028

#284F40

Split Complementary

#40284F

#4A4F28

#284F2C

Tetradic

#40284F

#4F2C28

#374F28

#284A4F

Color Blindness Simulation

Original

#40284F

Protanopia

#363546

Deuteranopia

#373943

Tritanopia

#3F3E3C

Achromatopsia

#303030

CSS Usage

background-color: #40284F;
color: #40284F;
border-color: #40284F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F5F9
100
#EEE8F2
200
#DED0E7
300
#C6AED6
400
#A882C0
500
#8956A9
600
#6E4587
700
#58376C
800
#452B55
900
#34223F
950
#211628

Contrast Checker

Text on white

12.85:1

AA Pass AAA Pass

Text on black

1.63:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026