#1B3D72

#1B3D72

Color Values

HEX

#1B3D72

RGB

27, 61, 114

HSL

216.6, 61.7%, 27.6%

HSV

216.6, 76.3%, 44.7%

CMYK

76.3%, 46.5%, 0.0%, 55.3%

OKLCH

0.3654 0.0996 259.1

Properties

Cool Dark Nearest: RAL 5017 Traffic Blue

Color Harmonies

Complementary

#1B3D72

#72501B

Analogous

#1B6872

#251B72

#1B3D72

Triadic

#1B3D72

#721B3D

#3D721B

Split Complementary

#1B3D72

#72251B

#68721B

Tetradic

#1B3D72

#721B68

#72501B

#1B7225

Color Blindness Simulation

Original

#1B3D72

Protanopia

#2A2A65

Deuteranopia

#282562

Tritanopia

#1D5B59

Achromatopsia

#3A3A3A

CSS Usage

background-color: #1B3D72;
color: #1B3D72;
border-color: #1B3D72;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F3F6FB
100
#E4EBF7
200
#C5D6F1
300
#9CB9E8
400
#6694DB
500
#316ECE
600
#2758A5
700
#1F4784
800
#183767
900
#162B4B
950
#0E1B30

Contrast Checker

Text on white

10.73:1

AA Pass AAA Pass

Text on black

1.96:1

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