#15558D

#15558D

Color Values

HEX

#15558D

RGB

21, 85, 141

HSL

208.0, 74.1%, 31.8%

HSV

208.0, 85.1%, 55.3%

CMYK

85.1%, 39.7%, 0.0%, 44.7%

OKLCH

0.4408 0.1111 249.9

Properties

Cool Dark Nearest: dodgerblue 4

Color Harmonies

Complementary

#15558D

#8D4D15

Analogous

#158D89

#15198D

#15558D

Triadic

#15558D

#8D1555

#558D15

Split Complementary

#15558D

#8D1519

#8D8915

Tetradic

#15558D

#89158D

#8D4D15

#198D15

Color Blindness Simulation

Original

#15558D

Protanopia

#31317F

Deuteranopia

#2D287C

Tritanopia

#187572

Achromatopsia

#4B4B4B

CSS Usage

background-color: #15558D;
color: #15558D;
border-color: #15558D;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F3F8FC
100
#E2EEF8
200
#C1DDF6
300
#94C5EF
400
#5BA5E7
500
#2186DE
600
#1A6BB2
700
#15568E
800
#11436F
900
#103351
950
#0A2033

Contrast Checker

Text on white

7.73:1

AA Pass AAA Pass

Text on black

2.72:1

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