#1B3F76

#1B3F76

Color Values

HEX

#1B3F76

RGB

27, 63, 118

HSL

216.3, 62.8%, 28.4%

HSV

216.3, 77.1%, 46.3%

CMYK

77.1%, 46.6%, 0.0%, 53.7%

OKLCH

0.3731 0.103 258.8

Properties

Cool Dark Nearest: RAL 5017 Traffic Blue

Color Harmonies

Complementary

#1B3F76

#76521B

Analogous

#1B6C76

#241B76

#1B3F76

Triadic

#1B3F76

#761B3F

#3F761B

Split Complementary

#1B3F76

#76241B

#6C761B

Tetradic

#1B3F76

#761B6C

#76521B

#1B7624

Color Blindness Simulation

Original

#1B3F76

Protanopia

#2B2B69

Deuteranopia

#282666

Tritanopia

#1D5E5C

Achromatopsia

#3B3B3B

CSS Usage

background-color: #1B3F76;
color: #1B3F76;
border-color: #1B3F76;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F3F6FB
100
#E4EBF7
200
#C5D7F2
300
#9BBAE8
400
#6594DC
500
#2F6FD0
600
#2659A6
700
#1E4785
800
#183768
900
#152B4C
950
#0D1B30

Contrast Checker

Text on white

10.4:1

AA Pass AAA Pass

Text on black

2.02:1

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