#1F64B2

#1F64B2

Color Values

HEX

#1F64B2

RGB

31, 100, 178

HSL

211.8, 70.3%, 41.0%

HSV

211.8, 82.6%, 69.8%

CMYK

82.6%, 43.8%, 0.0%, 30.2%

OKLCH

0.5035 0.1409 254.6

Properties

Cool Dark Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#1F64B2

#B26D1F

Analogous

#1FAEB2

#231FB2

#1F64B2

Triadic

#1F64B2

#B21F64

#64B21F

Split Complementary

#1F64B2

#B2231F

#AEB21F

Tetradic

#1F64B2

#B21FAE

#B26D1F

#1FB223

Color Blindness Simulation

Original

#1F64B2

Protanopia

#3D3D9F

Deuteranopia

#39349B

Tritanopia

#22908D

Achromatopsia

#5B5B5B

CSS Usage

background-color: #1F64B2;
color: #1F64B2;
border-color: #1F64B2;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F3F7FC
100
#E2EDF8
200
#C2DAF4
300
#97BFED
400
#5E9DE3
500
#267AD9
600
#1E62AE
700
#184E8B
800
#133D6D
900
#122F4F
950
#0B1D32

Contrast Checker

Text on white

5.96:1

AA Pass AAA Fail

Text on black

3.52:1

AA Fail 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