#1B3D6F

#1B3D6F

Color Values

HEX

#1B3D6F

RGB

27, 61, 111

HSL

215.7, 60.9%, 27.1%

HSV

215.7, 75.7%, 43.5%

CMYK

75.7%, 45.0%, 0.0%, 56.5%

OKLCH

0.3632 0.0952 258.2

Properties

Cool Dark Nearest: RAL 5017 Traffic Blue

Color Harmonies

Complementary

#1B3D6F

#6F4D1B

Analogous

#1B676F

#231B6F

#1B3D6F

Triadic

#1B3D6F

#6F1B3D

#3D6F1B

Split Complementary

#1B3D6F

#6F231B

#676F1B

Tetradic

#1B3D6F

#6F1B67

#6F4D1B

#1B6F23

Color Blindness Simulation

Original

#1B3D6F

Protanopia

#2A2A63

Deuteranopia

#282560

Tritanopia

#1D5957

Achromatopsia

#393939

CSS Usage

background-color: #1B3D6F;
color: #1B3D6F;
border-color: #1B3D6F;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F3F7FB
100
#E4EBF6
200
#C6D7F1
300
#9DBBE7
400
#6796DA
500
#3271CD
600
#285AA4
700
#204883
800
#193867
900
#162B4B
950
#0E1B2F

Contrast Checker

Text on white

10.8:1

AA Pass AAA Pass

Text on black

1.94:1

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