#397BCB

#397BCB

Color Values

HEX

#397BCB

RGB

57, 123, 203

HSL

212,9, 58,4%, 51,0%

HSV

212,9, 71,9%, 79,6%

CMYK

71,9%, 39,4%, 0,0%, 20,4%

OKLCH

0,5796 0,1405 254,9

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#397BCB

#CB8939

Analogous

#39C4CB

#4039CB

#397BCB

Triadic

#397BCB

#CB397B

#7BCB39

Split Complementary

#397BCB

#CB4039

#C4CB39

Tetradic

#397BCB

#CB39C4

#CB8939

#39CB40

Color Blindness Simulation

Original

#397BCB

Protanopia

#5656B8

Deuteranopia

#524DB3

Tritanopia

#3CA8A5

Achromatopsia

#737373

CSS Usage

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

Tailwind Shades

50
#F4F7FB
100
#E4ECF6
200
#C6D9F0
300
#9EBEE6
400
#6A9BD8
500
#3578CA
600
#2A60A2
700
#224D81
800
#1B3C65
900
#172E4A
950
#0F1D2F

Contrast Checker

Text on white

4,31:1

AA Fail AAA Fail

Text on black

4,87:1

AA Pass AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Ene 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Ene 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Ene 15, 2026