#277CCC

#277CCC

Color Values

HEX

#277CCC

RGB

39, 124, 204

HSL

209.1, 67.9%, 47.6%

HSV

209.1, 80.9%, 80.0%

CMYK

80.9%, 39.2%, 0.0%, 20.0%

OKLCH

0.5771 0.1463 251.0

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#277CCC

#CC7727

Analogous

#27CCC9

#2729CC

#277CCC

Triadic

#277CCC

#CC277C

#7CCC27

Split Complementary

#277CCC

#CC2729

#CCC927

Tetradic

#277CCC

#C927CC

#CC7727

#29CC27

Color Blindness Simulation

Original

#277CCC

Protanopia

#4C4DB9

Deuteranopia

#4740B4

Tritanopia

#2BA9A6

Achromatopsia

#707070

CSS Usage

background-color: #277CCC;
color: #277CCC;
border-color: #277CCC;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F7FC
100
#E3EDF7
200
#C3DCF4
300
#98C3EB
400
#61A3E1
500
#2982D6
600
#2168AB
700
#1A5389
800
#14416B
900
#13314E
950
#0C1F31

Contrast Checker

Text on white

4.34:1

AA Fail AAA Fail

Text on black

4.84:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

ก.พ. 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

ก.พ. 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

ก.พ. 19, 2026