#15717C

#15717C

Color Values

HEX

#15717C

RGB

21, 113, 124

HSL

186.4, 71.0%, 28.4%

HSV

186.4, 83.1%, 48.6%

CMYK

83.1%, 8.9%, 0.0%, 51.4%

OKLCH

0.5038 0.081 207.4

Properties

Cool Dark Nearest: RAL 5021 Water Blue

Color Harmonies

Complementary

#15717C

#7C2015

Analogous

#157C53

#153D7C

#15717C

Triadic

#15717C

#7C1571

#717C15

Split Complementary

#15717C

#7C153D

#7C5315

Tetradic

#15717C

#53157C

#7C2015

#3D7C15

Color Blindness Simulation

Original

#15717C

Protanopia

#3D3E79

Deuteranopia

#383179

Tritanopia

#1A7777

Achromatopsia

#5E5E5E

CSS Usage

background-color: #15717C;
color: #15717C;
border-color: #15717C;
Nearest Tailwind: Cyan 700 #0E7490

Tailwind Shades

50
#F3FBFC
100
#E2F6F8
200
#C2EFF5
300
#96E4ED
400
#5ED5E4
500
#25C7DA
600
#1E9FAE
700
#187F8C
800
#12636D
900
#11494F
950
#0B2E32

Contrast Checker

Text on white

5.7:1

AA Pass AAA Fail

Text on black

3.68:1

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