#287ACC

#287ACC

Color Values

HEX

#287ACC

RGB

40, 122, 204

HSL

210.0, 67.2%, 47.8%

HSV

210.0, 80.4%, 80.0%

CMYK

80.4%, 40.2%, 0.0%, 20.0%

OKLCH

0.5728 0.1481 252.2

Properties

Cool Light Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#287ACC

#CC7A28

Analogous

#28CCCC

#2828CC

#287ACC

Triadic

#287ACC

#CC287A

#7ACC28

Split Complementary

#287ACC

#CC2828

#CCCC28

Tetradic

#287ACC

#CC28CC

#CC7A28

#28CC28

Color Blindness Simulation

Original

#287ACC

Protanopia

#4C4CB8

Deuteranopia

#4741B3

Tritanopia

#2CA8A5

Achromatopsia

#6E6E6E

CSS Usage

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

Tailwind Shades

50
#F3F7FC
100
#E3EDF7
200
#C3DBF3
300
#99C2EB
400
#61A1E0
500
#2A80D5
600
#2166AB
700
#1B5288
800
#15406B
900
#13304E
950
#0C1F31

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

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

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026