#1F73BC

#1F73BC

Color Values

HEX

#1F73BC

RGB

31, 115, 188

HSL

207,9, 71,7%, 42,9%

HSV

207,9, 83,5%, 73,7%

CMYK

83,5%, 38,8%, 0,0%, 26,3%

OKLCH

0,5446 0,1375 249,8

Properties

Cool Dark Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#1F73BC

#BC681F

Analogous

#1FBCB6

#1F24BC

#1F73BC

Triadic

#1F73BC

#BC1F73

#73BC1F

Split Complementary

#1F73BC

#BC1F24

#BCB61F

Tetradic

#1F73BC

#B61FBC

#BC681F

#24BC1F

Color Blindness Simulation

Original

#1F73BC

Protanopia

#4344AA

Deuteranopia

#3E38A6

Tritanopia

#239C99

Achromatopsia

#666666

CSS Usage

background-color: #1F73BC;
color: #1F73BC;
border-color: #1F73BC;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F8FC
100
#E2EEF8
200
#C2DDF5
300
#96C5EE
400
#5DA5E4
500
#2486DB
600
#1D6BAF
700
#17568C
800
#12436D
900
#113350
950
#0B2032

Contrast Checker

Text on white

4,96:1

AA Pass AAA Fail

Text on black

4,24:1

AA Fail 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