#397DB2

#397DB2

Color Values

HEX

#397DB2

RGB

57, 125, 178

HSL

206,3, 51,5%, 46,1%

HSV

206,3, 68,0%, 69,8%

CMYK

68,0%, 29,8%, 0,0%, 30,2%

OKLCH

0,57 0,107 244,9

Properties

Cool Light Nearest: steelblue

Color Harmonies

Complementary

#397DB2

#B26E39

Analogous

#39B2AB

#3940B2

#397DB2

Triadic

#397DB2

#B2397D

#7DB239

Split Complementary

#397DB2

#B23940

#B2AB39

Tetradic

#397DB2

#AB39B2

#B26E39

#40B239

Color Blindness Simulation

Original

#397DB2

Protanopia

#5657A5

Deuteranopia

#524DA2

Tritanopia

#3C9B99

Achromatopsia

#727272

CSS Usage

background-color: #397DB2;
color: #397DB2;
border-color: #397DB2;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F4F8FB
100
#E5EEF5
200
#C9DEEE
300
#A2C6E1
400
#70A7D1
500
#3E88C1
600
#316C9B
700
#28577C
800
#1F4461
900
#1A3347
950
#10202D

Contrast Checker

Text on white

4,42:1

AA Fail AAA Fail

Text on black

4,75:1

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