#1F5ABC

#1F5ABC

Color Values

HEX

#1F5ABC

RGB

31, 90, 188

HSL

217.5, 71.7%, 42.9%

HSV

217.5, 83.5%, 73.7%

CMYK

83.5%, 52.1%, 0.0%, 26.3%

OKLCH

0.4886 0.1662 260.2

Properties

Cool Dark Nearest: NCS S 1050-R90B Blue Violet

Color Harmonies

Complementary

#1F5ABC

#BC811F

Analogous

#1FA8BC

#331FBC

#1F5ABC

Triadic

#1F5ABC

#BC1F5A

#5ABC1F

Split Complementary

#1F5ABC

#BC331F

#A8BC1F

Tetradic

#1F5ABC

#BC1FA8

#BC811F

#1FBC33

Color Blindness Simulation

Original

#1F5ABC

Protanopia

#3939A4

Deuteranopia

#35319F

Tritanopia

#22928D

Achromatopsia

#555555

CSS Usage

background-color: #1F5ABC;
color: #1F5ABC;
border-color: #1F5ABC;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F3F6FC
100
#E2EAF8
200
#C2D5F5
300
#96B7EE
400
#5D90E4
500
#2469DB
600
#1D54AF
700
#17438C
800
#12346D
900
#112950
950
#0B1A32

Contrast Checker

Text on white

6.47:1

AA Pass AAA Fail

Text on black

3.25:1

AA Fail AAA Fail

Related Articles

Tutorials

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

जन 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

जन 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

जन 15, 2026