#129EB1

#129EB1

Color Values

HEX

#129EB1

RGB

18, 158, 177

HSL

187.2, 81.5%, 38.2%

HSV

187.2, 89.8%, 69.4%

CMYK

89.8%, 10.7%, 0.0%, 30.6%

OKLCH

0.6418 0.1083 210.1

Properties

Cool Light Nearest: NCS S 1050-B20G Cyan

Color Harmonies

Complementary

#129EB1

#B12512

Analogous

#12B174

#124EB1

#129EB1

Triadic

#129EB1

#B1129E

#9EB112

Split Complementary

#129EB1

#B1124E

#B17412

Tetradic

#129EB1

#7412B1

#B12512

#4EB112

Color Blindness Simulation

Original

#129EB1

Protanopia

#4F50AC

Deuteranopia

#463CAB

Tritanopia

#19A9A8

Achromatopsia

#828282

CSS Usage

background-color: #129EB1;
color: #129EB1;
border-color: #129EB1;
Nearest Tailwind: Cyan 600 #0891B2

Tailwind Shades

50
#F2FBFD
100
#E1F7FA
200
#BEF1F8
300
#90E8F4
400
#54DBEE
500
#18CEE7
600
#13A5B9
700
#0F8494
800
#0C6774
900
#0D4B54
950
#083035

Contrast Checker

Text on white

3.21:1

AA Fail AAA Fail

Text on black

6.55:1

AA Pass AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

1月 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

1月 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

1月 15, 2026