#287FCF

#287FCF

Color Values

HEX

#287FCF

RGB

40, 127, 207

HSL

208.7, 67.6%, 48.4%

HSV

208.7, 80.7%, 81.2%

CMYK

80.7%, 38.6%, 0.0%, 18.8%

OKLCH

0.586 0.1467 250.6

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#287FCF

#CF7828

Analogous

#28CFCB

#282CCF

#287FCF

Triadic

#287FCF

#CF287F

#7FCF28

Split Complementary

#287FCF

#CF282C

#CFCB28

Tetradic

#287FCF

#CB28CF

#CF7828

#2CCF28

Color Blindness Simulation

Original

#287FCF

Protanopia

#4E4EBC

Deuteranopia

#4942B7

Tritanopia

#2CACA9

Achromatopsia

#727272

CSS Usage

background-color: #287FCF;
color: #287FCF;
border-color: #287FCF;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F8FC
100
#E3EEF7
200
#C3DCF3
300
#98C4EB
400
#61A3E0
500
#2983D6
600
#2169AB
700
#1A5489
800
#15426B
900
#13324E
950
#0C1F31

Contrast Checker

Text on white

4.18:1

AA Fail AAA Fail

Text on black

5.03:1

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