#688BA4

#688BA4

Color Values

HEX

#688BA4

RGB

104, 139, 164

HSL

205.0, 24.8%, 52.5%

HSV

205.0, 36.6%, 64.3%

CMYK

36.6%, 15.2%, 0.0%, 35.7%

OKLCH

0.6198 0.0546 239.8

Properties

Cool Light Nearest: lightslategrey

Color Harmonies

Complementary

#688BA4

#A48168

Analogous

#68A49F

#686DA4

#688BA4

Triadic

#688BA4

#A4688B

#8BA468

Split Complementary

#688BA4

#A4686D

#A49F68

Tetradic

#688BA4

#9F68A4

#A48168

#6DA468

Color Blindness Simulation

Original

#688BA4

Protanopia

#77779E

Deuteranopia

#75729C

Tritanopia

#6A9998

Achromatopsia

#858585

CSS Usage

background-color: #688BA4;
color: #688BA4;
border-color: #688BA4;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#E9EEF1
200
#D2DDE4
300
#B3C4D1
400
#89A5B8
500
#60859F
600
#4D6A7F
700
#3D5566
800
#304250
900
#26323B
950
#182025

Contrast Checker

Text on white

3.61:1

AA Fail AAA Fail

Text on black

5.82:1

AA Pass AAA Fail

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