#397BBA

#397BBA

Color Values

HEX

#397BBA

RGB

57, 123, 186

HSL

209.3, 53.1%, 47.6%

HSV

209.3, 69.4%, 72.9%

CMYK

69.4%, 33.9%, 0.0%, 27.1%

OKLCH

0.5697 0.1186 249.8

Properties

Cool Light Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#397BBA

#BA7839

Analogous

#39BAB8

#393ABA

#397BBA

Triadic

#397BBA

#BA397B

#7BBA39

Split Complementary

#397BBA

#BA393A

#BAB839

Tetradic

#397BBA

#B839BA

#BA7839

#3ABA39

Color Blindness Simulation

Original

#397BBA

Protanopia

#5656AB

Deuteranopia

#524DA7

Tritanopia

#3C9F9C

Achromatopsia

#727272

CSS Usage

background-color: #397BBA;
color: #397BBA;
border-color: #397BBA;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F7FB
100
#E5EDF5
200
#C8DCEE
300
#A1C3E2
400
#6FA2D3
500
#3C81C3
600
#30679C
700
#26537D
800
#1E4162
900
#193148
950
#101F2D

Contrast Checker

Text on white

4.45:1

AA Fail AAA Fail

Text on black

4.72:1

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