#0B558C

#0B558C

Color Values

HEX

#0B558C

RGB

11, 85, 140

HSL

205.6, 85.4%, 29.6%

HSV

205.6, 92.1%, 54.9%

CMYK

92.1%, 39.3%, 0.0%, 45.1%

OKLCH

0.4382 0.112 247.9

Properties

Cool Dark Nearest: RAL 5019 Capri Blue

Color Harmonies

Complementary

#0B558C

#8C420B

Analogous

#0B8C82

#0B148C

#0B558C

Triadic

#0B558C

#8C0B55

#558C0B

Split Complementary

#0B558C

#8C0B14

#8C820B

Tetradic

#0B558C

#820B8C

#8C420B

#148C0B

Color Blindness Simulation

Original

#0B558C

Protanopia

#2B2C7F

Deuteranopia

#27217C

Tritanopia

#0F7472

Achromatopsia

#494949

CSS Usage

background-color: #0B558C;
color: #0B558C;
border-color: #0B558C;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F2F8FD
100
#E0EFFA
200
#BDE0FA
300
#8EC9F6
400
#50ACF1
500
#138FEC
600
#0F73BD
700
#0C5C97
800
#094876
900
#0B3656
950
#072236

Contrast Checker

Text on white

7.8:1

AA Pass AAA Pass

Text on black

2.69:1

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