#818BBC

#818BBC

Color Values

HEX

#818BBC

RGB

129, 139, 188

HSL

229.8, 30.6%, 62.2%

HSV

229.8, 31.4%, 73.7%

CMYK

31.4%, 26.1%, 0.0%, 26.3%

OKLCH

0.6473 0.0743 275.2

Properties

Cool Light Nearest: Blue Bell

Color Harmonies

Complementary

#818BBC

#BCB281

Analogous

#81A9BC

#9581BC

#818BBC

Triadic

#818BBC

#BC818B

#8BBC81

Split Complementary

#818BBC

#BC9581

#A9BC81

Tetradic

#818BBC

#BC81A9

#BCB281

#81BC95

Color Blindness Simulation

Original

#818BBC

Protanopia

#8585B0

Deuteranopia

#8584AD

Tritanopia

#82A7A5

Achromatopsia

#8C8C8C

CSS Usage

background-color: #818BBC;
color: #818BBC;
border-color: #818BBC;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F6F9
100
#E9EAF2
200
#D0D4E6
300
#AFB5D5
400
#848EBE
500
#5866A7
600
#475185
700
#39416B
800
#2C3353
900
#23283E
950
#161927

Contrast Checker

Text on white

3.31:1

AA Fail AAA Fail

Text on black

6.35:1

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