#129DED

#129DED

Color Values

HEX

#129DED

RGB

18, 157, 237

HSL

201.9, 85.9%, 50.0%

HSV

201.9, 92.4%, 92.9%

CMYK

92.4%, 33.8%, 0.0%, 7.1%

OKLCH

0.6687 0.1579 243.0

Properties

Cool Light Nearest: steelblue 2

Color Harmonies

Complementary

#129DED

#ED6212

Analogous

#12EDCF

#1230ED

#129DED

Triadic

#129DED

#ED129D

#9DED12

Split Complementary

#129DED

#ED1230

#EDCF12

Tetradic

#129DED

#CF12ED

#ED6212

#30ED12

Color Blindness Simulation

Original

#129DED

Protanopia

#4E4FDA

Deuteranopia

#463CD5

Tritanopia

#19CAC7

Achromatopsia

#858585

CSS Usage

background-color: #129DED;
color: #129DED;
border-color: #129DED;
Nearest Tailwind: Sky 500 #0EA5E9

Tailwind Shades

50
#F2F9FD
100
#E0F1FA
200
#BDE4FA
300
#8DD0F6
400
#50B7F2
500
#129DED
600
#0E7EBE
700
#0C6598
800
#094F77
900
#0B3B56
950
#072536

Contrast Checker

Text on white

2.97:1

AA Fail AAA Fail

Text on black

7.07:1

AA Pass AAA Pass

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026