#1B5DA6

#1B5DA6

Color Values

HEX

#1B5DA6

RGB

27, 93, 166

HSL

211.5, 72.0%, 37.8%

HSV

211.5, 83.7%, 65.1%

CMYK

83.7%, 44.0%, 0.0%, 34.9%

OKLCH

0.4781 0.134 254.3

Properties

Cool Dark Nearest: NCS S 2065-B Pure Blue

Color Harmonies

Complementary

#1B5DA6

#A6641B

Analogous

#1BA2A6

#1E1BA6

#1B5DA6

Triadic

#1B5DA6

#A61B5D

#5DA61B

Split Complementary

#1B5DA6

#A61E1B

#A2A61B

Tetradic

#1B5DA6

#A61BA2

#A6641B

#1BA61E

Color Blindness Simulation

Original

#1B5DA6

Protanopia

#383894

Deuteranopia

#342F90

Tritanopia

#1E8683

Achromatopsia

#545454

CSS Usage

background-color: #1B5DA6;
color: #1B5DA6;
border-color: #1B5DA6;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F3F7FC
100
#E2EDF8
200
#C2DAF5
300
#96C0EE
400
#5D9DE5
500
#247BDB
600
#1D62AF
700
#174F8C
800
#123D6E
900
#112F50
950
#0B1E32

Contrast Checker

Text on white

6.64:1

AA Pass AAA Fail

Text on black

3.16:1

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