#278BD8

#278BD8

Color Values

HEX

#278BD8

RGB

39, 139, 216

HSL

206.1, 69.4%, 50.0%

HSV

206.1, 81.9%, 84.7%

CMYK

81.9%, 35.6%, 0.0%, 15.3%

OKLCH

0.6185 0.1462 247.0

Properties

Cool Light Nearest: RAL 5012 Light Blue

Color Harmonies

Complementary

#278BD8

#D87427

Analogous

#27D8CC

#2733D8

#278BD8

Triadic

#278BD8

#D8278B

#8BD827

Split Complementary

#278BD8

#D82733

#D8CC27

Tetradic

#278BD8

#CC27D8

#D87427

#33D827

Color Blindness Simulation

Original

#278BD8

Protanopia

#5253C5

Deuteranopia

#4C45C1

Tritanopia

#2CB7B3

Achromatopsia

#7B7B7B

CSS Usage

background-color: #278BD8;
color: #278BD8;
border-color: #278BD8;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F8FC
100
#E3EFF8
200
#C3DFF4
300
#97C7EC
400
#5FA9E2
500
#278BD8
600
#1F6FAD
700
#19598A
800
#14466C
900
#12344F
950
#0B2132

Contrast Checker

Text on white

3.64:1

AA Fail AAA Fail

Text on black

5.77:1

AA Pass AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026