#0040D3

#0040D3

Color Values

HEX

#0040D3

RGB

0, 64, 211

HSL

221.8, 100.0%, 41.4%

HSV

221.8, 100.0%, 82.7%

CMYK

100.0%, 69.7%, 0.0%, 17.3%

OKLCH

0.454 0.2303 263.1

Properties

Cool Dark Nearest: Purple Heart

Color Harmonies

Complementary

#0040D3

#D39300

Analogous

#00AAD3

#2A00D3

#0040D3

Triadic

#0040D3

#D30040

#40D300

Split Complementary

#0040D3

#D32A00

#AAD300

Tetradic

#0040D3

#D300AA

#D39300

#00D32A

Color Blindness Simulation

Original

#0040D3

Protanopia

#1C1CAF

Deuteranopia

#1813A7

Tritanopia

#03938D

Achromatopsia

#3D3D3D

CSS Usage

background-color: #0040D3;
color: #0040D3;
border-color: #0040D3;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F1F5FE
100
#DEE7FC
200
#B8CDFF
300
#85AAFF
400
#427CFF
500
#004DFF
600
#003ECC
700
#0032A3
800
#002780
900
#051F5C
950
#03143A

Contrast Checker

Text on white

7.85:1

AA Pass AAA Pass

Text on black

2.67:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026