#3581CD

#3581CD

Color Values

HEX

#3581CD

RGB

53, 129, 205

HSL

210.0, 60.3%, 50.6%

HSV

210.0, 74.1%, 80.4%

CMYK

74.1%, 37.1%, 0.0%, 19.6%

OKLCH

0.593 0.1382 251.3

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#3581CD

#CD8135

Analogous

#35CDCD

#3535CD

#3581CD

Triadic

#3581CD

#CD3581

#81CD35

Split Complementary

#3581CD

#CD3535

#CDCD35

Tetradic

#3581CD

#CD35CD

#CD8135

#35CD35

Color Blindness Simulation

Original

#3581CD

Protanopia

#5657BB

Deuteranopia

#524CB6

Tritanopia

#39ACA9

Achromatopsia

#767676

CSS Usage

background-color: #3581CD;
color: #3581CD;
border-color: #3581CD;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F7FB
100
#E4EDF6
200
#C6DBF1
300
#9DC2E7
400
#68A1DA
500
#3380CC
600
#2866A4
700
#205283
800
#194066
900
#16304B
950
#0E1F2F

Contrast Checker

Text on white

4.06:1

AA Fail AAA Fail

Text on black

5.17:1

AA Pass 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