#1B3C6C

#1B3C6C

Color Values

HEX

#1B3C6C

RGB

27, 60, 108

HSL

215.6, 60.0%, 26.5%

HSV

215.6, 75.0%, 42.4%

CMYK

75.0%, 44.4%, 0.0%, 57.6%

OKLCH

0.3586 0.0919 258.0

Properties

Cool Dark Nearest: RAL 5017 Traffic Blue

Color Harmonies

Complementary

#1B3C6C

#6C4B1B

Analogous

#1B656C

#231B6C

#1B3C6C

Triadic

#1B3C6C

#6C1B3C

#3C6C1B

Split Complementary

#1B3C6C

#6C231B

#656C1B

Tetradic

#1B3C6C

#6C1B65

#6C4B1B

#1B6C23

Color Blindness Simulation

Original

#1B3C6C

Protanopia

#292A60

Deuteranopia

#27255E

Tritanopia

#1D5755

Achromatopsia

#383838

CSS Usage

background-color: #1B3C6C;
color: #1B3C6C;
border-color: #1B3C6C;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F3F7FB
100
#E4EBF6
200
#C6D7F1
300
#9DBBE7
400
#6896D9
500
#3371CC
600
#295BA3
700
#214883
800
#1A3966
900
#162C4B
950
#0E1C2F

Contrast Checker

Text on white

11.0:1

AA Pass AAA Pass

Text on black

1.91:1

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