#129DB1

#129DB1

Color Values

HEX

#129DB1

RGB

18, 157, 177

HSL

187.5, 81.5%, 38.2%

HSV

187.5, 89.8%, 69.4%

CMYK

89.8%, 11.3%, 0.0%, 30.6%

OKLCH

0.6393 0.1082 211.0

Properties

Cool Light Nearest: NCS S 1050-B20G Cyan

Color Harmonies

Complementary

#129DB1

#B12612

Analogous

#12B175

#124EB1

#129DB1

Triadic

#129DB1

#B1129D

#9DB112

Split Complementary

#129DB1

#B1124E

#B17512

Tetradic

#129DB1

#7512B1

#B12612

#4EB112

Color Blindness Simulation

Original

#129DB1

Protanopia

#4E4FAC

Deuteranopia

#463CAB

Tritanopia

#19A8A8

Achromatopsia

#818181

CSS Usage

background-color: #129DB1;
color: #129DB1;
border-color: #129DB1;
Nearest Tailwind: Cyan 600 #0891B2

Tailwind Shades

50
#F2FBFD
100
#E1F6FA
200
#BEF1F8
300
#90E7F4
400
#54DAEE
500
#18CDE7
600
#13A4B9
700
#0F8394
800
#0C6774
900
#0D4B54
950
#082F35

Contrast Checker

Text on white

3.24:1

AA Fail AAA Fail

Text on black

6.48:1

AA Pass 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