#1B3D58

#1B3D58

Color Values

HEX

#1B3D58

RGB

27, 61, 88

HSL

206.6, 53.0%, 22.5%

HSV

206.6, 69.3%, 34.5%

CMYK

69.3%, 30.7%, 0.0%, 65.5%

OKLCH

0.3482 0.0618 244.9

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1B3D58

#58361B

Analogous

#1B5854

#1B1E58

#1B3D58

Triadic

#1B3D58

#581B3D

#3D581B

Split Complementary

#1B3D58

#581B1E

#58541B

Tetradic

#1B3D58

#541B58

#58361B

#1E581B

Color Blindness Simulation

Original

#1B3D58

Protanopia

#2A2A51

Deuteranopia

#282550

Tritanopia

#1D4C4B

Achromatopsia

#383838

CSS Usage

background-color: #1B3D58;
color: #1B3D58;
border-color: #1B3D58;
Nearest Tailwind: Sky 950 #082F49

Tailwind Shades

50
#F4F8FB
100
#E5EEF5
200
#C8DDEE
300
#A1C5E2
400
#6FA6D3
500
#3C87C3
600
#306C9C
700
#26577D
800
#1E4462
900
#193348
950
#10202D

Contrast Checker

Text on white

11.32:1

AA Pass AAA Pass

Text on black

1.86:1

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